""ET TROJAN Suspected Cobalt Strike Beacon User-Agent String""
SID: 2037020
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_and_Server, created_at 2022_06_15, deployment Perimeter, malware_family CobaltStrike, performance_impact Low, signature_severity Major, updated_at 2022_06_15
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
- Value: "User-Agent|3a 20|Mozilla/5.0 |28|compatible|3b 20|MSIE 9.0|3b 20|Windows NT 6.1|3b 20|Trident/5.0|3b 20|NP07|3b 20|NP07|29|"
Within:
PCRE:
Special Options:
- http_header