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Rev: 1 • Dec 13, 2014, 12:00 PMET MALWARE Possible Net Crawler SMB Share Access unicode (Operation Cleaver)
alert tcp any any -> any [139,445] (msg:"ET MALWARE Possible Net Crawler SMB Share Access unicode (Operation Cleaver)"; flow:established,to_server; content:"|FF|SMB"; offset:4; depth:4; byte_test:1,!&,0x80,6,relative; content:"|00|_|00|A|00|u|00|t|00|o|00|S|00|h|00|a|00|r|00|e|00|$"; distance:0; reference:md5,8994e16b14cde144a9cebdff685d8676; reference:url,www0.cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf; classtype:trojan-activity; sid:2019929; rev:1; metadata:created_at 2014_12_13, confidence Medium, signature_severity Major, updated_at 2019_07_26;)
Dec 13, 2014, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules