ET WEB_CLIENT Exchange Webshell CnC Domain in DNS Lookup

SID: 2032345Rev: 10 views
History
Sourceet/open
CreatedMarch 29, 2021
UpdatedMarch 29, 2021
Classificationdomain-c2
alert dns $HOME_NET any -> any any (msg:"ET WEB_CLIENT Exchange Webshell CnC Domain in DNS Lookup"; dns.query; content:"brian.krebsonsecurity.top"; nocase; bsize:25; reference:url,krebsonsecurity.com/2021/03/no-i-did-not-hack-your-ms-exchange-server/; classtype:domain-c2; sid:2032345; rev:1; metadata:created_at 2021_03_29, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_03_29;)

References

urlkrebsonsecurity.com/2021/03/no-i-did-not-hack-your-ms-exchange-server/

Metadata

created at2021_03_29
confidenceHigh
signature severityInformational
tagDescription_Generated_By_Proofpoint_Nexus
updated at2021_03_29

Comments (0)

Please sign in to leave a comment.
Sign in

No comments yet. Be the first to comment!