""ET TROJAN BazaLoader CnC Activity""

SID: 2033033

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 2021_05_26, deployment Perimeter, deployment SSLDecrypt, former_category MALWARE, malware_family BazaLoader, signature_severity Major, updated_at 2023_03_10

Reference:

  • md5

  • 96764a0a62e66a147a3d4db0e59a6e34

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: !"."

  • Value: !"&"

  • Value: "Date|3a 20|"

  • Value: "GMT|0d 0a|"

  • Value: "|0d 0a|User-Agent|3a 20|apiutwq|0d 0a|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/GMT\x0d\x0a[a-z]{3,15}\x3a\x20/Hs"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_header

  • http_header

  • fast_pattern

  • http_header

  • http_header

source