THL CovertVPN ICMP Tunnel Oversized Payload with Data or Keepalive Marker

SID: 3500049Rev: 1Enabled2 views
History
Filehunters-ledger.rules
CreatedApril 8, 2026
UpdatedJuly 13, 2026
Classificationtrojan-activity
alert icmp $HOME_NET any -> $EXTERNAL_NET any (msg:"THL CovertVPN ICMP Tunnel Oversized Payload with Data or Keepalive Marker"; itype:8; dsize:>128; byte_test:1,=,0xDD,4; threshold:type limit,track by_src,count 5,seconds 60; classtype:trojan-activity; sid:3500049; rev:1; metadata:author The_Hunters_Ledger, date 2026-04-08, reference https://the-hunters-ledger.com/hunting-detections/new-files-found-20260408-detections/;)

Metadata

authorThe_Hunters_Ledger
date2026-04-08
referencehttps://the-hunters-ledger.com/hunting-detections/new-files-found-20260408-detections/

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