""ET TROJAN Powershell/PowHeartBeat CnC Checkin - ICMP""
SID: 2038821
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_and_Server, created_at 2022_09_13, deployment Perimeter, malware_family PowerShell_PowHeartBeat, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_09_13
Reference:
Protocol: icmp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: any
Flow:
Contents:
-
Value: "|3b 1d 41 1d|" Depth: 4
-
Value: "abcdefghijklmnopqrstuvwxyz"
Within:
PCRE:
Special Options:
- fast_pattern