""ET TROJAN Win32/Fujacks Variant CnC Activity""

SID: 2030580

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_07_22, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2020_07_22

Reference:

  • md5

  • 54b72be155b057f693508c0d15fc6d00

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET /down1.txt HTTP/1.1|0d 0a|User-Agent|3a 20|ErrCode|0d 0a|Host|3a 20|" Depth: 52

  • Value: !"Referer|3a 20|"

  • Value: !"Connection|3a 20|"

  • Value: !"Accept|3a 20|"

Within:

PCRE:

Special Options:

  • http_header

  • http_header

  • http_header

source