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Rev: 3 • Feb 4, 2014, 12:00 PMET MALWARE Possible KAPTOXA Encoded Data Transferred Over SMB 9
alert tcp any any -> any 445 (msg:"ET MALWARE Possible KAPTOXA Encoded Data Transferred Over SMB 9"; flow:to_server,established; flowbits:isset,ET.kaptoxa; content:"SMB"; content:"sh"; fast_pattern; distance:0; pcre:"/^[a-zA-Z0-9/]{2}(?:M[1fhl]|T[1fhl]|s[hl])[a-zA-Z0-9/]{2}(?:M[1fhl]|T[1fhl]|s[hl])[a-zA-Z0-9/]{2}(?:M[1fhl]|T[1fhl]|s[hl])[a-zA-Z0-9/]{2}(?:M[1fhl]|T[1fhl]|s[hl])/R"; reference:url,securityintelligence.com/target-data-breach-kaptoxa-pos-malware/; classtype:trojan-activity; sid:2018067; rev:3; metadata:created_at 2014_02_04, confidence Medium, signature_severity Major, updated_at 2019_07_26;)
Feb 4, 2014, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules