""ET CURRENT_EVENTS Tech Support Scam - Windows Firewall M4 2021-08-17""
SID: 2034206
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2021_10_17, deployment Perimeter, signature_severity Minor, tag SocEng, updated_at 2021_10_17, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,from_server
Contents:
-
Value: "200"
-
Value: "i>|20|Looking|20|for|20|updates<"
-
Value: "i>|20|Scan|20|memory<"
-
Value: "Windows|20|registry|20|scan"
Within:
PCRE:
Special Options:
-
http_stat_code
-
file_data
-
fast_pattern