IronNetInjector can obfuscate variable names, encrypt strings, as well as base64 encode and Rijndael encrypt payloads.2
tool
IronNetInjector S0581
- Type
- tool
- Platform
- Windows
- Created
- 24 February 2021
- Last modified
- 11 April 2024
IronNetInjector is a Turla toolchain that utilizes scripts from the open-source IronPython implementation of Python with a .NET injector to drop one or more payloads including ComRAT.[1]
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0581
IronNetInjector has been disguised as a legitimate service using the name PythonUpdateSrvc.3
IronNetInjector has used a task XML file named mssch.xml to run an IronPython script when a user logs in or when specific system events are created.4
IronNetInjector can use an IronPython scripts to load a .NET injector to inject a payload into its own or a remote process.5
IronNetInjector has the ability to inject a DLL into running processes, including the IronNetInjector DLL into explorer.exe.6
IronNetInjector can identify processes via C# methods such as GetProcessesByName and running Tasklist with the Python os.popen function.7
Standing S0581
Reach is how much of ATT&CK this tool touches. Coverage is how well defended each thing it does is, as a median per technique rather than a total — a total would just restate the reach. Each figure is ranked against all 825 ATT&CK software entries only where that population actually spreads. Where most of the population shares one value, a percentile would rank the tie instead of the entity, so the raw value is shown and no rank is claimed.
Reach
38th percentile · 62% of 825 ATT&CK software entries have more Enterprise techniques.
41st percentile · 59% of 825 ATT&CK software entries have more tactics spanned.
61% of the population shares a single value across only 22 distinct values, so a percentile here would rank the tie, not the entity.
85% of the population shares a single value across only 8 distinct values, so a percentile here would rank the tie, not the entity.
Coverage
25th percentile · 75% of 825 ATT&CK software entries have more detection rules per technique.
Detection coverage S0581
205 distinct rules cover the 8 techniques recorded for this tool. The 211 technique-to-rule mappings resolve to 205 distinct rules, because one rule can cover several techniques. 138 Sigma · 67 Splunk.
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