SHELLCODE: X86 OS agnostic Call geteip Byte XOR Decoder Routine Over TCP-STC
This signature detects payloads being transferred over network that have been encoded using x86 call geteip byte xor decoder routine. This may be an indication of someone trying to evade anti-virus/IPS solutions and possibly drop malicious code.
Short Name
SHELLCODE:X86:GETEIP-XOR-STC
Severity
Critical
Recommended
True
Recommended Action
Drop
Category
SHELLCODE
Keywords
Byte Call Decoder OS Over Routine TCP-STC X86 XOR agnostic geteip
Release Date
08/17/2015
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3324
Port
TCP/0-79,81-442,444-3127,3129-7999,8001-8079,8081-65535
False Positive
Unknown