Versions (4)
Version DetailsCurrent
Rev: 3 • Jul 30, 2010, 12:00 PMET MALWARE Koobface C&C availability check successful
alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET MALWARE Koobface C&C availability check successful"; flowbits:isset,ET.koobfacecheck; flow:established,from_server; content:"|0d 0a 0d 0a|ACH_OK"; nocase; reference:url,us.trendmicro.com/imperia/md/content/us/trendwatch/researchandanalysis/the_20heart_20of_20koobface_final_1_.pdf; classtype:command-and-control; sid:2010152; rev:3; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)
Jul 30, 2010, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
Oct 10, 2025, 8:34 PM
rules/emerging-malware.rules