""ET MALWARE Win32/DownloadAssistant.Q Variant Checkin""

SID: 2029210

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 2019_12_30, deployment Perimeter, performance_impact Low, signature_severity Minor, updated_at 2019_12_30

Reference:

  • md5

  • 0ec90cb6e0e3f8cd86d5d1d08f184e5f

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST /v2/events HTTP/1.1" Depth: 24

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/Connection\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20[^\r\n]+\r\nContent-Length\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\n$/H"

Special Options:

  • fast_pattern

  • http_header

source