""ET TROJAN Sekhmet Ransomware CnC Activity""
SID: 2029728
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 2020_03_23, deployment Perimeter, signature_severity Major, tag Ransomware, updated_at 2020_03_23, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact
Reference:
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md5
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b7ad5f7ec71dc812b4771950671b192a
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "POST /update.php?id=" Depth: 20
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Value: "User-Agent|3a 20|Mozilla/4.0 (compatible|3b| MSIE 6.0)|0d 0a|"
Within:
PCRE: "/^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})\x00$/P"
Special Options:
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fast_pattern
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http_header