""ET TROJAN Worm.VBS Dunihi/Houdini/H-Worm Checkin UA""

SID: 2017994

Revision: 5

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2014_01_22, deployment Perimeter, malware_family Houdini, malware_family H_worm, performance_impact Low, signature_severity Major, updated_at 2019_07_19

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: to_server,established

Contents:

  • Value: "User-Agent|3A 20|"

  • Value: "|3C 7C 3E|"

  • Value: "|3C 7C 3E|"

Within:

PCRE: "/^User-Agent\x3a\x20[^\r\n]+?\x3c\x7c\x3e[^\r\n]+?\x3c\x7c\x3e[^\r\n]+?\x3c\x7c\x3e/m"

Special Options:

  • fast_pattern

source