Loading skill
Install any skill in seconds. Free to start, no credit card required.
Get Started Free →cyberstrikeus/T1614.001_system-language-discovery
Adversaries may attempt to gather information about the system language of a victim in order to infer the geographical location of that host.
Passed 23 of 24 test cases with the skill, and 19 of 24 without it.
and 2 more in the full report
4 fixed19 passed either way1 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 4 test cases the skill fixed. Same model, same prompt, with and without the skill.
A threat detection engineer is configuring Atomic Red Team Test 1 for T1614.001 on a Windows server. What exact CMD command line does Atomic Red Team execute to perform this registry discovery test?
| Checked | Without skill | With skill |
|---|---|---|
| Provides the exact command reg query HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\Language. | Missed | Passed |
The instructions your model reads when the skill loads.
Sub-technique of: T1614
Adversaries may attempt to gather information about the system language of a victim in order to infer the geographical location of that host. This information may be used to shape follow-on behaviors, including whether the adversary infects the target and/or attempts specific actions. This decision may be employed by malware developers and operators to reduce their risk of attracting the attention of specific law enforcement agencies or prosecution/scrutiny from other entities.
There are various sources of data an adversary could use to infer system language, such as system defaults and keyboard layouts. Specific checks will vary based on the target and/or adversary, but may involve behaviors such as Query Registry and calls to Native API functions.
For example, on a Windows system adversaries may attempt to infer the language of a system by querying the registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\Language or parsing the outputs of Windows API functions GetUserDefaultUILanguage, GetSystemDefaultUILanguage, GetKeyboardLayoutList and GetUserDefaultLangID.
On a macOS or Linux system, adversaries may query locale to retrieve the value of the $LANG environment variable.
Platforms: Linux, macOS, Windows
The following tests are from Atomic Red Team and provide actionable ways to test this technique:
Identify System language by querying the registry on an endpoint.
Upon successful execution, result in number format can be looked up to correlate the language.
test cases passed, vs 19 / 24 without
Published skills whose descriptions closely match this one, with their headline benchmark lift.
More skills from the same source and nearby in the registry, with their headline benchmark lift.