Signature Detail
Short Name |
SHELLCODE:X86:XOR-DWORD-80S |
|---|---|
Severity |
Critical |
Recommended |
Yes |
Recommended Action |
Drop |
Category |
SHELLCODE |
Keywords |
X86 OS agnostic XOR Dword Decoder Routine Over HTTP-STC |
Release Date |
2015/08/12 |
Update Number |
2525 |
Supported Platforms |
idp-4.1+, isg-3.5.141421+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
SHELLCODE: X86 OS agnostic XOR Dword Decoder Routine Over HTTP-STC
This signature detects payloads being transferred over network that have been encoded using x86 XOR dword decoder routine. This may be an indication of someone trying to evade anti-virus/IPS solutions and possibly drop malicious code.