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Get Started Free →cyberstrikeus/T1564.007_vba-stomping
Adversaries may hide malicious Visual Basic for Applications (VBA) payloads embedded within MS Office documents by replacing the VBA source code with benign data.
Passed 17 of 23 test cases with the skill, and 9 of 23 without it.
and 8 more in the full report
8 fixed9 passed either way6 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.
Which parent MITRE ATT&CK technique encompasses VBA Stomping, and what specific sub-technique ID is assigned to it?
| Checked | Without skill | With skill |
|---|---|---|
| The response identifies T1564 as the parent technique. | Missed | Passed |
| The response specifies T1564.007 as the sub-technique ID. | Missed | Passed |
The instructions your model reads when the skill loads.
Sub-technique of: T1564
Adversaries may hide malicious Visual Basic for Applications (VBA) payloads embedded within MS Office documents by replacing the VBA source code with benign data.
MS Office documents with embedded VBA content store source code inside of module streams. Each module stream has a PerformanceCache that stores a separate compiled version of the VBA source code known as p-code. The p-code is executed when the MS Office version specified in the _VBA_PROJECT stream (which contains the version-dependent description of the VBA project) matches the version of the host MS Office application.
An adversary may hide malicious VBA code by overwriting the VBA source code location with zero’s, benign code, or random bytes while leaving the previously compiled malicious p-code. Tools that scan for malicious VBA source code may be bypassed as the unwanted code is hidden in the compiled p-code. If the VBA source code is removed, some tools might even think that there are no macros present. If there is a version match between the _VBA_PROJECT stream and host MS Office application, the p-code will be executed, otherwise the benign VBA source code will be decompressed and recompiled to p-code, thus removing malicious p-code and potentially bypassing dynamic analysis.
Platforms: Linux, Windows, macOS
Identify Attack Surface: Determine if the target environment is susceptible to VBA Stomping by examining the target platforms (Linux, Windows, macOS).
Assess Existing Defenses: Review whether mitigations for T1564.007 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.
test cases passed, vs 9 / 23 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.