SID: 2044386

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_02_28, deployment Perimeter, former_category MALWARE, malware_family Gamaredon, confidence Medium, signature_severity Major, updated_at 2023_02_28

Reference:

  • md5

  • f0982247a02f035c2683c2fdf2876dff

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: ".ma HTTP/1."

  • Value: "GET"

  • Value: "|3b 20|ms-office|3b 20|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/^User-Agent\x3a\x20[^\r\n]+\x3b\x20ms-office\x3b\x20/Hmi"

Special Options:

  • fast_pattern

  • http_method

  • http_header

  • http_header

source