Versions (3)
Version DetailsCurrent
Rev: 4 • Jul 30, 2010, 12:00 PMET DELETED Possible Image Spam Inbound (3)
alert tcp $EXTERNAL_NET any -> $HOME_NET 25 (msg:"ET DELETED Possible Image Spam Inbound (3)"; flow:established,to_server; content:"Content-Transfer-Encoding|3A|"; content:"R0lGODlh"; depth:575; content:"AOAgAABAACBAAEBAAGBAAIBAAKBAAMBAAOBAAABgACBgAEBgAGBgAIBgAKBgAMBgAOBgAACAACCA"; content:"AECAAGCAAICAAKCAAMCAAOCAAACgACCgAECgAGCgAICgAKCgAMCgAOCgAADAACDAAEDAAGDAAIDA"; classtype:misc-activity; sid:2003120; rev:4; metadata:created_at 2010_07_30, signature_severity Unknown, 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
Dec 29, 2025, 9:34 PM
rules/emerging-deleted.rules