""ET TROJAN Win32/Retadup Success Response from CnC""

SID: 2027079

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2019_03_13, deployment Perimeter, malware_family Retadup, performance_impact Low, signature_severity Major, updated_at 2020_11_11

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "200"

  • Value: "|3a 3a|donnn|3a 3a|" Depth: 9

Within:

PCRE:

Special Options:

  • http_stat_code

  • file_data

  • fast_pattern

source