""ET MALWARE TA471 Malicious AutoIT File Upload""

SID: 2032886

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_04_28, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_04_28

Reference:

  • md5

  • 304d1ac0296fedec694a097480b341d9

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: "/upld/" Depth: 6

  • Value: "User-Agent|3a 20|Mozilla/4.0 (compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest.5)|0d 0a|"

  • Value: "Content-Type|3a 20|multipart/form-data|3b 20|boundary=----WebKitFormBoundary"

  • Value: !"Referer|3a 20|"

  • Value: !"Accept-Enc|3a 20|"

Within:

PCRE: "/^Connection\x3a\x20[^\r\n]+\r\n/Hm"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • http_header

source