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Get Started Free →Adversaries may attempt to get detailed information about a device’s operating system and hardware, including versions, patches, and architecture.
.claude/skills/cyberstrikeus-t1426-system-information-discovery/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-07 | ✗→✓ | ▲ Improved | -8% | 0% |
| case-08 | ✗→✓ | ▲ Improved | -38% | 0% |
| case-09 | ✗→✓ | ▲ Improved | -34% | 0% |
| case-11 | ✗→✓ | ▲ Improved | 13% | 0% |
| case-12 | ✗→✓ | ▲ Improved | -56% | 0% |
Adversaries may attempt to get detailed information about a device’s operating system and hardware, including versions, patches, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not to fully infects the target and/or attempts specific actions.
On Android, much of this information is programmatically accessible to applications through the android.os.Build class. iOS is much more restrictive with what information is visible to applications. Typically, applications will only be able to query the device model and which version of iOS it is running.
Platforms: Android, iOS
Determine if the target mobile environment is susceptible to System Information Discovery by examining the target platforms (Android, iOS).
Review whether mitigations for T1426 are in place. If defenses are absent or misconfigured, this technique may be exploitable.
No specific mitigations documented for this technique.
| Finding | Severity | Impact | | ------------------------------------------------- | -------- | --------- | | System Information Discovery technique applicable | Medium | Discovery |
| CWE ID | Title | | ------- | --------------------------------- | | CWE-200 | Exposure of Sensitive Information |
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | fail→fail | 38,612 | 29,036 | -25% | 1 | 1 | 0% | 5,002 | 4,464 | -11% | 0 | 0 | — |
case-02 | fail→fail | 31,771 | 35,073 | +10% | 1 | 1 | 0% | 4,403 | 5,034 | +14% | 0 | 0 | — |
case-03 | fail→fail | 26,552 | 22,385 | -16% | 1 | 1 | 0% | 3,277 | 3,456 | +5% | 0 | 0 | — |
case-04 | pass→pass | 21,625 | 30,716 | +42% | 1 | 1 | 0% | 2,188 | 2,864 | +31% | 0 | 0 | — |
case-05 | pass→pass | 24,457 | 40,304 | +65% | 1 | 1 | 0% | 3,000 | 2,928 | -2% | 0 | 0 | — |
case-06 | pass→pass | 21,753 | 18,855 | -13% | 1 | 1 | 0% | 2,571 | 2,857 | +11% | 0 | 0 | — |
case-07 | fail→pass | 16,504 | 17,015 | +3% | 1 | 1 | 0% | 2,655 | 2,432 | -8% | 0 | 0 | — |
case-08 | fail→pass | 17,546 | 10,319 | -41% | 1 | 1 | 0% | 2,300 | 1,422 | -38% | 0 | 0 | — |
case-09 | fail→pass | 16,805 | 31,808 | +89% | 1 | 1 | 0% | 1,865 | 1,226 | -34% | 0 | 0 | — |
case-10 | pass→pass | 14,898 | 4,603 | -69% | 1 | 1 | 0% | 1,617 | 1,272 | -21% | 0 | 0 | — |
case-11 | fail→pass | 25,291 | 20,772 | -18% | 1 | 1 | 0% | 2,625 | 2,955 | +13% | 0 | 0 | — |
case-12 | fail→pass | 13,338 | 2,188 | -84% | 1 | 1 | 0% | 1,901 | 839 | -56% | 0 | 0 | — |
case-13 | fail→pass | 17,243 | 4,365 | -75% | 1 | 1 | 0% | 2,336 | 1,124 | -52% | 0 | 0 | — |
case-14 | pass→pass | 26,705 | 29,385 | +10% | 1 | 1 | 0% | 2,841 | 2,316 | -18% | 0 | 0 | — |
case-15 | fail→pass | 22,913 | 6,915 | -70% | 1 | 1 | 0% | 3,197 | 722 | -77% | 0 | 0 | — |
case-16 | pass→pass | 11,423 | 8,565 | -25% | 1 | 1 | 0% | 933 | 919 | -2% | 0 | 0 | — |
case-17 | pass→pass | 18,732 | 20,851 | +11% | 1 | 1 | 0% | 2,343 | 2,774 | +18% | 0 | 0 | — |
case-18 | pass→pass | 17,554 | 10,806 | -38% | 1 | 1 | 0% | 1,947 | 1,360 | -30% | 0 | 0 | — |
case-19 | pass→pass | 23,674 | 16,298 | -31% | 1 | 1 | 0% | 2,580 | 2,697 | +5% | 0 | 0 | — |
case-20 | pass→pass | 12,904 | 7,301 | -43% | 1 | 1 | 0% | 1,105 | 747 | -32% | 0 | 0 | — |
case-21 | pass→pass | 20,594 | 10,755 | -48% | 1 | 1 | 0% | 2,635 | 1,248 | -53% | 0 | 0 | — |
case-22 | fail→pass | 16,738 | 8,403 | -50% | 1 | 1 | 0% | 1,697 | 917 | -46% | 0 | 0 | — |
case-23 | fail→pass | 28,388 | 7,270 | -74% | 1 | 1 | 0% | 3,337 | 759 | -77% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 23 cases were attempted. The headline lift of +39 percentage points is the difference between those two pass rates over the 23 comparable cases.
Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.
Other measured skills in the registry, with their headline benchmark lift.