Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Konni RAT Exfiltrating Data"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php?name="; fast_pattern; http.request_body; content:"name=|22|fileToUpload|22 3b|"; content:"Upload|20|Image|0d 0a|----"; distance:0; content:"|00 00 00 00 00 00|"; endswith; reference:url,blog.malwarebytes.com/threat-intelligence/2021/08/new-variant-of-konni-malware-used-in-campaign-targetting-russia/; classtype:command-and-control; sid:2033791; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_08_25, deployment Perimeter, confidence Medium, signature_severity Major, tag RAT, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_25;)