ET MALWARE Observed Fake Captcha Domain (security .flearegaurdc .com) in TLS SNI
Sourceet/open
CreatedApril 15, 2025
UpdatedApril 17, 2025
Classificationdomain-c2
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Fake Captcha Domain (security .flearegaurdc .com) in TLS SNI"; flow:established,to_server; tls.sni; bsize:25; content:"security.flearegaurdc.com"; fast_pattern; reference:md5,676341fd22b73e8836c09ead43d6fbc4; classtype:domain-c2; sid:2061597; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2025_04_15, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2025_04_17, mitre_tactic_id TA0037, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)
References
| md5 | 676341fd22b73e8836c09ead43d6fbc4 |
Metadata
affected productWindows_XP_Vista_7_8_10_Server_32_64_Bit
attack targetClient_Endpoint
created at2025_04_15
deploymentPerimeter
performance impactLow
confidenceHigh
signature severityMajor
updated at2025_04_17
mitre tactic idTA0037
mitre tactic nameCommand_And_Control
mitre technique idT1041
mitre technique nameExfiltration_Over_C2_Channel
Comments (0)
Please sign in to leave a comment.
Sign inNo comments yet. Be the first to comment!