🐾 - 🚨 Suspicious TLS Certificate including .biz TLD in issuer informations - Possible Qbot 👿 C2 Server

SID: 3300665Rev: 20 views
Sourcepawpatrules
CreatedMarch 24, 2022
UpdatedJune 26, 2023
Classificationtrojan-activity
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"🐾 - 🚨 Suspicious TLS Certificate including .biz TLD in issuer informations - Possible Qbot 👿 C2 Server"; flow:established,to_client; tls.cert_issuer; content:"C="; startswith; pcre:"/CN=[a-z0-9]{1,}.*biz/"; content:".biz"; endswith; content:!"CN=www."; tls.cert_subject; content:"C="; startswith; pcre:"/CN=[a-z0-9]{1,}.*biz/"; content:".biz"; endswith; reference:url,https://malpedia.caad.fkie.fraunhofer.de/details/win.qakbot; metadata:created_at 2022_03_24, updated_at 2023_06_26; sid:3300665; rev:2; classtype:trojan-activity;)

References

urlhttps://malpedia.caad.fkie.fraunhofer.de/details/win.qakbot

Metadata

created at2022_03_24
updated at2023_06_26

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