uberAgent

Sigma Rules & Converter

September 12, 2025

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uberAgent ESA ships with Threat Detection rules derived from Sigma signatures. These rules are grouped by severity: critical, high, medium, and low.

Sigma Rules

Following is an excerpt of some Sigma rules that ship with uberAgent® ESA:

Detect Ryuk ransomware command lines
Detect DNS tunnel activity for Muddywater actor
Detect a suspicious PowerShell command-line combination as used by APT29 in a campaign against US think tanks
Detect Russian group activity as described in Global Threat Report 2019 by Crowdstrike
Detect a suspicious DLL loading from AppData\Local as described in BlueMashroom report
Detect Chafer activity attributed to OilRig as reported in Nyotron report in March 2018
Detect CrackMapExecWin activity as described by NCSC
Detect Elise backdoor activity as used by APT32
Detect the execution of DLL side-loading malware used by threat group Emissary Panda aka APT27
Detect a specific tool and export used by EquationGroup
Detects Golden Chickens deployment method as used by Evilnum in a report published in July 2020
Detect tools and process executions as observed in a Greenbug campaign in May 2020
Detect Judgement Panda activity as described in Global Threat Report 2019 by Crowdstrike
Detect registry modifications performed by Ke3chang malware in campaigns running in 2019 and 2020
Detects Trojan loader activity as used by APT28
...and hundreds more

Not all Sigma rules are enabled by default.

Sigma Converter

vast limits maintains a Sigma to uberAgent rule converter as part of the Sigma project. The converter is implemented as a Sigma backend. Please see the header of uberAgent’s Sigma rule files for instructions on how to invoke the conversion.

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Sigma Rules & Converter

September 12, 2025

Contributed by:

September 12, 2025

Contributed by:

Sigma Rules & Converter

Sigma Rules

Sigma Converter

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