""ET TROJAN Backdoor.Win32.DarkComet Keepalive Inbound""
SID: 2013091
Revision: 7
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2011_06_22, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2017_04_10
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: any
Destination Network: $HOME_NET
Destination Port: any
Flow: from_server,established
Contents:
- Value: "KEEPALIVE" Depth: 9
Within:
PCRE: "/^KEEPALIVE\x7c?\d/i"
Special Options:
- nocase