Adversaries may remove indicators from tools if they believe their malicious tool was detected, quarantined, or otherwise curtailed. They can modify the tool by removing the indicator and using the updated version that is no longer detected by the target's defensive systems or subsequent targets that may use similar systems.
A good example of this is when malware is detected with a file signature and quarantined by anti-virus software. An adversary who can determine that the malware was quarantined because of its file signature may modify the file to explicitly avoid that signature, and then re-use the malware.
View in MITRE ATT&CK®| Capability ID | Capability Description | Mapping Type | ATT&CK ID | ATT&CK Name | Notes |
|---|---|---|---|---|---|
| azure_defender_for_app_service | Azure Defender for App Service | technique_scores | T1027.005 | Indicator Removal from Tools |
Comments
This control analyzes host data to detect execution of known malicious PowerShell PowerSploit cmdlets. This covers execution of this sub-technique via the Find-AVSignature AntivirusBypass module on Windows, but does not address other procedures or platforms, and temporal factor is unknown, resulting in a Minimal score.
References
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