""ET TROJAN Win32/OfferCore Checkin M1""

SID: 2053280

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_06_06, deployment Perimeter, deployment SSLDecrypt, malware_family Offercore, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_06_06

Reference:

  • md5

  • 60ba45cff3dbaaed74d7d63886c8957f

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/o"

  • Value: "User-Agent|3a 20|Mozilla/4.0|20 28|compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest"

  • Value: "|7b 22|prv|22 3a 20 22|"

  • Value: !"|0d 0a|Referer|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_header

  • fast_pattern

  • http_client_body

  • http_header

source