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Rule History

SID: 2527021 • Source: et/open

Versions (79)

Rev: 1621
May 29, 2026, 8:35 PM
Current
Rev: 1620
May 28, 2026, 9:09 PM
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May 27, 2026, 9:21 PM
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May 26, 2026, 8:12 PM
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May 22, 2026, 8:34 PM
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May 20, 2026, 8:35 PM
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Mar 13, 2026, 8:34 PM
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Mar 12, 2026, 8:34 PM
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Mar 11, 2026, 9:34 PM
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Mar 10, 2026, 8:34 PM
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Mar 9, 2026, 8:34 PM
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Mar 6, 2026, 10:34 PM
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Mar 5, 2026, 11:34 PM
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Mar 4, 2026, 9:34 PM
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Mar 3, 2026, 10:34 PM
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Mar 2, 2026, 10:34 PM
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Feb 27, 2026, 9:34 PM
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Feb 26, 2026, 9:34 PM
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Feb 23, 2026, 10:34 PM
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Feb 20, 2026, 10:34 PM
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Feb 18, 2026, 10:34 PM
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Feb 17, 2026, 10:34 PM
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Feb 16, 2026, 10:35 PM
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Feb 13, 2026, 10:34 PM
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Feb 12, 2026, 10:34 PM
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Rev: 1517
Feb 11, 2026, 10:34 PM
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Rev: 1516
Feb 10, 2026, 11:34 PM
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Rev: 1515
Feb 9, 2026, 10:34 PM
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Version Details

Rev: 1516 • Dec 9, 2021, 12:00 PM

ET Threatview.io High Confidence Cobalt Strike C2 IP group 22

alert ip [165.227.85.160,167.99.197.196] any -> $HOME_NET any (msg:"ET Threatview.io High Confidence Cobalt Strike C2 IP group 22"; reference:url,threatview.io/Downloads/High-Confidence-CobaltStrike-C2%20-Feeds.txt; threshold:type limit, track by_src, seconds 3600, count 1; classtype:misc-attack; sid:2527021; rev:1516; metadata:affected_product Any, attack_target Any, deployment Perimeter, tag Threatview_CS, signature_severity Major, created_at 2021_12_09, updated_at 2026_02_10;)

Dec 9, 2021, 12:00 PM

Feb 10, 2026, 12:00 PM

Feb 9, 2026, 10:34 PM

Feb 10, 2026, 11:34 PM

Feb 11, 2026, 10:34 PM

rules/threatview_CS_c2.rules