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Adversaries may employ various user activity checks to detect and avoid virtualization and analysis environments.
Passed 20 of 22 test cases with the skill, and 8 of 22 without it.
and 12 more in the full report
12 fixed8 passed either way2 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 12 test cases the skill fixed. Same model, same prompt, with and without the skill.
What specific impact category is listed for the user activity based checks finding in the risk assessment table?
| Checked | Without skill | With skill |
|---|---|---|
| Lists Defense Evasion as the risk impact. | Missed | Passed |
The instructions your model reads when the skill loads.
Sub-technique of: T1497
Adversaries may employ various user activity checks to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from Virtualization/Sandbox Evasion during automated discovery to shape follow-on behaviors.
Adversaries may search for user activity on the host based on variables such as the speed/frequency of mouse movements and clicks , browser history, cache, bookmarks, or number of files in common directories such as home or the desktop. Other methods may rely on specific user interaction with the system before the malicious code is activated, such as waiting for a document to close before activating a macro or waiting for a user to double click on an embedded image to activate.
Platforms: Linux, Windows, macOS
Identify Attack Surface: Determine if the target environment is susceptible to User Activity Based Checks by examining the target platforms (Linux, Windows, macOS).
Assess Existing Defenses: Review whether mitigations for T1497.002 are in place. If defenses are absent or misconfigured, this technique may be exploitable.
Execute Test: Use tools and methods described in the MITRE ATT&CK page and external references below.
Note: No Atomic Red Team tests available for this technique. See Atomic Red Team GitHub for updates.
No specific mitigations documented for this technique.
test cases passed, vs 8 / 22 without
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