ET MALWARE Suspected Kapeka/ICYWELL Backdoor Server Response (execute command)
Sourceet/open
CreatedApril 19, 2024
UpdatedApril 19, 2024
Classificationtrojan-activity
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Suspected Kapeka/ICYWELL Backdoor Server Response (execute command)"; flow:established,to_client; file.data; content:"|3a 20 22|Execute|20|command|22|,"; fast_pattern; reference:url,labs.withsecure.com/content/dam/labs/docs/WithSecure-Research-Kapeka.pdf; reference:url,services.google.com/fh/files/misc/apt44-unearthing-sandworm.pdf; classtype:trojan-activity; sid:2052172; rev:1; metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_04_19, deployment Perimeter, deployment SSLDecrypt, malware_family SANDWORM, malware_family APT44, confidence Medium, signature_severity Critical, tag RAT, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_19; target:dest_ip;)
References
Metadata
attack targetClient_Endpoint
tls stateTLSDecrypt
created at2024_04_19
deploymentSSLDecrypt
malware familyAPT44
confidenceMedium
signature severityCritical
tagDescription_Generated_By_Proofpoint_Nexus
updated at2024_04_19
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