""ET MALWARE VilnyNet VPN Install Started""

SID: 2031533

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_01_20, deployment Perimeter, performance_impact Low, signature_severity Minor, updated_at 2021_03_08

Reference:

  • md5

  • 3bdc372644285aa7b3c8263d7d1c9a4a

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "?event=winInstaller"

  • Value: "&uuid="

  • Value: "&osver"

  • Value: "&osbuild="

  • Value: "User-Agent|3a 20|NSISDL/1.2 (Mozilla)|0d 0a|"

Within:

PCRE:

Special Options:

  • http_uri

  • fast_pattern

  • http_uri

  • http_uri

  • http_uri

  • http_header

source