ET MALWARE Observed Cobalt Strike CnC Domain in DNS Lookup (nirsoft .me)
Sourceet/open
CreatedMarch 16, 2022
UpdatedMarch 16, 2022
Classificationdomain-c2
alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed Cobalt Strike CnC Domain in DNS Lookup (nirsoft .me)"; dns.query; content:"nirsoft.me"; nocase; bsize:10; reference:url,cert.gov.ua/article/37704; reference:md5,aa5e8268e741346c76ebfd1f27941a14; classtype:domain-c2; sid:2035469; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_03_16, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_16;)
References
| url | cert.gov.ua/article/37704 |
| md5 | aa5e8268e741346c76ebfd1f27941a14 |
Metadata
attack targetClient_Endpoint
created at2022_03_16
deploymentPerimeter
performance impactLow
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2022_03_16
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