improve debug detection features #721
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mr-tz
commented
Mar 11, 2023
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| # We're not including kernel32.IsDebuggerPresent here because some exception handlers and other compiler-inserted | ||
| # code may add calls to it, especially in debug builds. So, likely even with pretty good library code detection | ||
| # this feature could result in many false positives. |
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| - api: NtQuerySystemInformation | ||
| - api: NtQuerySystemInformationEx | ||
| - api: ZwQuerySystemInformation | ||
| - api: ZwQuerySystemInformationEx |
| references: | ||
| - https://github.com/LordNoteworthy/al-khaser/blob/master/al-khaser/AntiDebug/NtQuerySystemInformation_SystemKernelDebuggerInformation.cpp | ||
| features: | ||
| - and: | ||
| - api: NtQueryInformationProcess | ||
| - or: | ||
| - api: NtQuerySystemInformation |
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fix: ...SystemInformation (see al-khaser and Anti-DebugNet source)
mike-hunhoff
approved these changes
Mar 14, 2023
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| # We're not including kernel32.IsDebuggerPresent here because some exception handlers and other compiler-inserted | ||
| # code may add calls to it, especially in debug builds. So, likely even with pretty good library code detection | ||
| # this feature could result in many false positives. |
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ref #595