Versions (4)
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Rev: 1 • May 10, 2021, 12:00 PMET MALWARE Pingback Exep Command Issued
alert icmp $HOME_NET any -> any any (msg:"ET MALWARE Pingback Exep Command Issued"; dsize:>787; itype:8; content:"exep"; depth:4; reference:url,www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/backdoor-at-the-end-of-the-icmp-tunnel/; reference:md5,264c2ede235dc7232d673d4748437969; classtype:trojan-activity; sid:2032934; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_05_10, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_05_10;)
May 10, 2021, 12:00 PM
May 10, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 12, 2025, 9:34 PM
rules/emerging-malware.rules