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Adversaries may delete or modify artifacts generated within systems to remove evidence of their presence or hinder defenses.
Passed 20 of 22 test cases with the skill, and 15 of 22 without it.
and 6 more in the full report
6 fixed14 passed either way1 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 6 test cases the skill fixed. Same model, same prompt, with and without the skill.
To prevent local log modification, security architects often attempt to set local log files to read-only. Which MITRE mitigation ID focuses on automatically forwarding events to remote data repositories to minimize delay and local storage duration?
| Checked | Without skill | With skill |
|---|---|---|
| Cites MITRE mitigation ID M1029 | Missed | Passed |
| Recommends forwarding logs to remote data storage servers | Passed | Passed |
The instructions your model reads when the skill loads.
Adversaries may delete or modify artifacts generated within systems to remove evidence of their presence or hinder defenses. Various artifacts may be created by an adversary or something that can be attributed to an adversary’s actions. Typically these artifacts are used as defensive indicators related to monitored events, such as strings from downloaded files, logs that are generated from user actions, and other data analyzed by defenders. Location, format, and type of artifact (such as command or login history) are often specific to each platform.
Removal of these indicators may interfere with event collection, reporting, or other processes used to detect intrusion activity. This may compromise the integrity of security solutions by causing notable events to go unreported. This activity may also impede forensic analysis and incident response, due to lack of sufficient data to determine what occurred.
Platforms: Containers, ESXi, Linux, macOS, Network Devices, Office Suite, Windows
The following tests are from Atomic Red Team and provide actionable ways to test this technique:
Manages the update sequence number (USN) change journal, which provides a persistent log of all changes made to files on the volume. Upon execution, no output will be displayed. More information about fsutil can be found at https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/fsutil-usn
Supported Platforms: windows Elevation Required: Yes
fsutil usn deletejournal /D C:
test cases passed, vs 15 / 22 without
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