""ET TROJAN MalDoc/Gamaredon CnC Activity M1""

SID: 2044827

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_03_29, deployment Perimeter, signature_severity Major, tag Gamaredon, updated_at 2023_03_29

Reference:

• Link

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "OPTIONS"

• Value: "/DESKTOP-" Depth: 9

• Value: "User-Agent|3a 20|Microsoft Office Protocol Discovery|0d 0a|"

Within:

PCRE:

Special Options:

• http_method

• http_uri

• fast_pattern

• http_header

source