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

SID: 2034341

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: "Expect|3a 20|100-continue|0d 0a|"

  • Value: "POST /log HTTP/1.1" Depth: 18

  • Value: !"Referer|3a 20|"

  • Value: !"User-Agent|3a 20|"

Within:

PCRE:

Special Options:

  • http_header

  • fast_pattern

  • http_header

  • http_header

source