alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Cobalt Strike Malleable C2 (Custom)"; flow:established,to_server; content:"POST"; http_method; content:"/api/2.0/modules?"; http_uri; depth:17; fast_pattern; content:"Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|Accept|3a 20|*/*|0d 0a|Content-Transfer-Encoding|3a 20|base64|0d 0a|"; http_header; pcre:"/^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/P"; http_header_names; content:!"Referer"; reference:url,twitter.com/CyberRaiju/status/1249272772963864576; reference:md5,79bbe1365fb7532613823ce3e0cac499; classtype:trojan-activity; sid:2029978; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_04_20, deployment Perimeter, former_category MALWARE, malware_family Cobalt_Strike, signature_severity Major, updated_at 2020_04_20, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;)

Added 2021-05-25 18:04:03 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Cobalt Strike Malleable C2 (Custom)"; flow:established,to_server; content:"POST"; http_method; content:"/api/2.0/modules?"; http_uri; depth:17; fast_pattern; content:"Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|Accept|3a 20|*/*|0d 0a|Content-Transfer-Encoding|3a 20|base64|0d 0a|"; http_header; pcre:"/^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/P"; http_header_names; content:!"Referer"; reference:url,twitter.com/CyberRaiju/status/1249272772963864576; reference:md5,79bbe1365fb7532613823ce3e0cac499; classtype:trojan-activity; sid:2029978; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_04_20, deployment Perimeter, former_category MALWARE, performance_impact Low, signature_severity Major, updated_at 2020_04_20;)

Added 2020-08-05 19:18:02 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Cobalt Strike Malleable C2 (Custom)"; flow:established,to_server; content:"POST"; http_method; content:"/api/2.0/modules?"; http_uri; depth:17; fast_pattern; content:"Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|Accept|3a 20|*/*|0d 0a|Content-Transfer-Encoding|3a 20|base64|0d 0a|"; http_header; pcre:"/^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/P"; http_header_names; content:!"Referer"; metadata: former_category MALWARE; reference:url,twitter.com/CyberRaiju/status/1249272772963864576; reference:md5,79bbe1365fb7532613823ce3e0cac499; classtype:trojan-activity; sid:2029978; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2020_04_20, performance_impact Low, updated_at 2020_04_20;)

Added 2020-04-20 19:37:01 UTC


Topic revision: r1 - 2021-05-25 - TWikiGuest
 
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