""ET TROJAN JanelaRAT CnC Checkin Observed""

SID: 2047646

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 2023_08_14, deployment Perimeter, malware_family JanelaRAT, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_11_10

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "?op="

  • Value: "&us="

  • Value: "&nm="

  • Value: "&vs="

  • Value: "User-Agent|3a 20|VisaoAPP"

Within:

PCRE: "/User-Agent\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+\r\n\r\n/Hm"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_header

  • fast_pattern

source