""ET TROJAN Win32/HackTool.Agent.CS SMTP activity""
SID: 2037755
Revision: 1
Class Type: trojan-activity
Metadata: attack_target SMTP_Server, created_at 2022_07_13, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2022_07_13
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: [25,587]
Flow: established,to_server
Contents:
- Value: "|7c 7c 7c|hhjjkk"
Within:
PCRE:
Special Options:
- fast_pattern