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Get Started Free →cyberstrikeus/T1679_selective-exclusion
Adversaries may intentionally exclude certain files, folders, directories, file types, or system components from encryption or tampering during a ransomware or malicious payload execution.
Passed 19 of 22 test cases with the skill, and 10 of 22 without it.
and 8 more in the full report
9 fixed10 passed either way3 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
Which operating system platform is officially designated as susceptible to ATT&CK technique T1679 Selective Exclusion?
| Checked | Without skill | With skill |
|---|---|---|
| Identifies Windows as the target platform. | Missed | Passed |
The instructions your model reads when the skill loads.
Adversaries may intentionally exclude certain files, folders, directories, file types, or system components from encryption or tampering during a ransomware or malicious payload execution. Some file extensions that adversaries may avoid encrypting include .dll, .exe, and .lnk.
Adversaries may perform this behavior to avoid alerting users, to evade detection by security tools and analysts, or, in the case of ransomware, to ensure that the system remains operational enough to deliver the ransom notice.
Exclusions may target files and components whose corruption would cause instability, break core services, or immediately expose the attack. By carefully avoiding these areas, adversaries maintain system responsiveness while minimizing indicators that could trigger alarms or otherwise inhibit achieving their goals.
Platforms: Windows
Identify Attack Surface: Determine if the target environment is susceptible to Selective Exclusion by examining the target platforms (Windows).
Assess Existing Defenses: Review whether mitigations for T1679 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 10 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.