""ET TROJAN slock Ransomware CnC Activity""

SID: 2034291

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 2021_10_29, deployment Perimeter, performance_impact Low, signature_severity Major, tag Ransomware, updated_at 2021_10_29, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

Reference:

  • md5

  • 45a430e2bcba867f4d8a537354a98a73

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/slock.php?ip="

  • Value: "&&user="

  • Value: "&&host="

  • Value: "&&domain="

  • Value: "&&domain="

  • Value: "User-Agent|3a 20|Mozilla|2f|5|2e|0|20 28|Windows|20|NT|20|10|2e|0|3b 20|WOW64|3b 20|Trident|2f|7|2e|0|3b 20|rv|3a|11|2e|0|29 20|like|20|Gecko|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_uri

  • http_uri

  • http_header

  • http_header

source