""ET TROJAN Win32/Blacklegion Ransomware CnC Checkin""
SID: 2049718
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_12_18, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, updated_at 2023_12_18
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "GET"
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Value: "|2a 2a|Unique|2b|ID"
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Value: "|2a 2a|Personal|2b|ID"
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Value: "Host|3a 20|api.telegram.org|0d 0a|"
Within:
PCRE:
Special Options:
-
http_method
-
http_uri
-
fast_pattern
-
http_uri
-
http_header