""ET TROJAN AllcomeClipper CnC Checkin""

SID: 2039100

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_10_05, deployment Perimeter, malware_family AllcomeClipper, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_10_05

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "?cf6zrlhn="

  • Value: "User-Agent|3a 20|"

  • Value: "YaBrowser/"

  • Value: "Yowser/"

Within:

PCRE:

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_header

  • http_header

  • http_header

source