""ET MALWARE Trojan-Dropper.MSIL CnC Traffic - GET""

SID: 2034340

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 2021_11_03, deployment Perimeter, signature_severity Major, tag c2, updated_at 2021_11_03

Reference:

  • md5

  • f7744662b78e045946678b3aab34f5b5

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: "/Vv/" Depth: 4

  • Value: !"Referer|3a 20|"

  • Value: !"User-Agent|3a 20|"

Within:

PCRE: "/.(dll|exe|zip|json)$/Ui"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

source