Improve Screenshot Detection by Modifying capture-screenshot.yml #1007
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -6,6 +6,7 @@ rule: | |
| - [email protected] | ||
| - "@_re_fox" | ||
| - [email protected] | ||
| - "Abhyuday K Hegde" | ||
| scopes: | ||
| static: function | ||
| dynamic: span of calls | ||
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@@ -17,15 +18,18 @@ rule: | |
| - BFB9B5391A13D0AFD787E87AB90F14F5:0x1314610A | ||
| - 7204e3efc2434012e13ca939db0d0b02:0x414070 | ||
| - 50D5EE1CE2CA5E30C6B1019EE64EEEC2:0x406E07 | ||
| - 0a30182ff3a6b67beb0f2cda9d0de678:0x407910 | ||
| features: | ||
| - or: | ||
| # Classic GDI Capture | ||
| - and: | ||
| - or: | ||
| - api: user32.GetWindowDC | ||
| - api: user32.GetDC | ||
| - and: | ||
| - api: gdi32.CreateDC | ||
| - optional: | ||
| - string: "DISPLAY" | ||
| - or: | ||
| - api: gdi32.BitBlt | ||
| - api: gdi32.GetDIBits | ||
|
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@@ -43,3 +47,31 @@ rule: | |
| - and: | ||
| - api: BitBlt | ||
| - api: System.Drawing.Graphics::CopyFromScreen | ||
| - and: | ||
| - api: "SelectObject" | ||
| - or: | ||
| - api: "BitBlt" | ||
| - api: "StretchBlt" | ||
| - api: "PrintWindow" | ||
| # GDI+ Graphics API chain | ||
| - and: | ||
| - api: "GdipCreateBitmapFromScan0" | ||
| - api: "GdipGetImageGraphicsContext" | ||
| - api: "GdipGetDC" | ||
| # Direct GDI+ screen copy | ||
| - and: | ||
| - api: "Gdiplus::Graphics::FromHDC" | ||
| - api: "Gdiplus::Graphics::CopyFromScreen" | ||
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There was a problem hiding this comment. Should these be api or function-name features? There was a problem hiding this comment. Hello @mike-hunhoff ! |
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| # DirectX method of screen capture | ||
| - and: | ||
| - or: | ||
| - api: "PrintWindow" | ||
| - api: "StretchBlt" | ||
| - and: | ||
| - api: "DwmGetDxSharedSurface" | ||
| - optional: | ||
| - string: "DXGI" | ||
| - or: | ||
| - api: "Direct3DCreate9" | ||
| - api: "IDirect3DDevice9::GetFrontBufferData" | ||
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There was a problem hiding this comment. Should these be api or function-name features? There was a problem hiding this comment. Over here too, Direct3DCreate 9 is a direct import of a dll file right? There was a problem hiding this comment. Furthermore, changing these features to function-name would require me to change the static scope of the rule to file. Would it not increase the number of false positives? |
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| - string: "IDirect3DSurface9::GetDC" | ||
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api features do not require ". Please remove the " from this api feature and all that follow.
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Sure. I'll remove the quotes!