""ET TROJAN ISMAgent Receiving Commands from CnC Server""
SID: 2024503
Revision: 3
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_07_28, deployment Perimeter, malware_family Ismdoor, performance_impact Moderate, signature_severity Major, updated_at 2017_07_31
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: from_server,established
Contents:
- Value: "|23|command|23 23|systeminfo"
Offset: 36
- Value: "&&"
Within:
PCRE:
Special Options:
- fast_pattern