""ET TROJAN Alphacrypt/TeslaCrypt Ransomware CnC Beacon""

SID: 2022504

Revision: 4

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_02_11, deployment Perimeter, malware_family Ransomware, malware_family Alphacrypt, malware_family TeslaCrypt, signature_severity Major, tag Ransomware, tag c2, updated_at 2016_11_15, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

  • md5

  • a3440b6117f3783989683753c9f394dd

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: ".php"

  • Value: !"Referer|3a|"

  • Value: "data=" Depth: 5

  • Value: !"driftmania"

  • Value: !"coreftp.com|0d 0a|"

  • Value: "User-Agent|3a 20|Mozilla"

Within:

PCRE: "/.php$/U"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_client_body

  • fast_pattern

  • http_header

  • http_header

  • http_header

source