Updated: Copy Protection Section(s)

.vscode/settings.json

@@ -7,6 +7,7 @@
         "alacritty",
         "alloc",
         "APPINSTALLER",
+        "Assasin's",
         "autopopulated",
         "bannerlord",
         "behaviour",
@@ -15,6 +16,7 @@
         "Breakin",
         "characteroverhaul",
         "CLSCTX",
+        "codefusion",
         "Compat",
         "COMPLUS",
         "coreclr",
@@ -91,6 +93,8 @@
         "runtimes",
         "seasidehill",
         "seasidehillmidnight",
+        "secdrv",
+        "Secu",
         "SIGABRT",
         "sigaction",
         "SIGBUS",
@@ -107,6 +111,7 @@
         "Steamless",
         "Steamworks",
         "struct",
+        "stxt",
         "superfences",
         "taleworlds",
         "tasklist",
@@ -125,6 +130,7 @@
         "winapi",
         "winget",
         "writeln",
+        "xdelta",
         "Yeppers"
     ]
 }

docs/Loader/Copy-Protection/About.md

@@ -1,4 +1,4 @@
-# About Copy Protection
+# About Copy Protection (DRM)
 
 !!! info
 
@@ -11,26 +11,32 @@ And unfortunately, naturally, that means sometimes copy protection gets in the w
 
 ## Sub-Sections
 
-- [Windows: Steam](./Windows-Steam.md)
+- [Windows: Denuvo](./Windows-Denuvo.md)
 - [Windows: Microsoft Store](./Windows-MSStore.md)
+- [Windows: Steam](./Windows-Steam.md)
+- [Windows: SafeDisc](./Windows-SafeDisc.md)
 
-## Miscellaneous
+## Suggestions & Actions
 
-### Denuvo
+### Prefer DRM-Free Versions
 
-!!! question "Some Denuvo titles have Anti-Debugging Measures"
+!!! info "Mods should always target DRM-Free version(s) of games if available."
 
-    However it is unclear whether it is an optional Denuvo component or additional DRM from the publisher.
+In some rare scenarios a game may be officially distributed in both 
+DRM-Free and ***Defective by Design*** versions.
 
-!!! info
+Example: `Yakuza: Like a Dragon`
+
+- [DRM Free Goodness](https://www.gog.com/en/game/yakuza_like_a_dragon) on GOG
+- [Denuvo Infested Garbage](https://store.steampowered.com/app/1235140/Yakuza_Like_a_Dragon/) on Steam
+
+The Steam version is harder to mod, may have more performance issues and will one day...
 
-    Some SEGA games circa 2017 featuring Denuvo also have an anti-debug measure where `ntdll.DbgUiRemoteBreakin` will
-    constantly be rewritten with  `ret` (0xC3) on a background thread to prevent debugging.
+***STOP. WORKING. FOREVER.***
 
-    It is usually easy to patch. Known affected titles include Sonic Forces and Puyo Puyo Tetris.
+With the GOG version, you can at least have peace of mind and one day show your kids or grandkids
+the joy of your childhood games.
 
-Aside from obfuscating select game functions, generally Denuvo is
-surprisingly the least intrusive modern DRM solution as far as loading mods is concerned.
+### Prefer DRM-Free Versions
 
-All the pain is transferred to those making mods, be it waiting 30 hours for static analysis
-to finish, or obfuscating the random game function.
+### Detection

docs/Loader/Copy-Protection/Windows-Denuvo.md

@@ -0,0 +1,40 @@
+# Denuvo
+
+Aside from obfuscating select game functions, generally Denuvo is
+surprisingly the least intrusive modern DRM solution as far as loading mods is concerned.
+
+All the pain is transferred to those making mods, be it waiting 30 hours for static analysis
+to finish, or obfuscating the random game function.
+
+That said, unlike something like SecuROM or SafeDisc, the original game isn't totally wrecked
+all over the place.
+
+## Detection
+
+!!! info "Denuvo has an 'offline activation portal', in case your PC cannot connect to their servers."
+
+This is a failsafe in case the game cannot connect to the Denuvo servers to verify the license.
+
+By signature scanning for the domain `support.codefusion.technology` (usually UTF-16), you can verify
+a game as Denuvo protected.
+
+!!! note "Some extra optional steps"
+
+    After that URL you get 4 bytes (unknown purpose) and (in all my samples) `01 00 00 00 66 66 66 2E 0F 1F 84 00 00 00 00 00`. 
+
+    Following that is another null terminated string which contains the specific product ID. For example, in `Persona 5 Royal`, this is `P5R_9AG4H12`.
+
+    Combine the two, you get `https://support.codefusion.technology/P5R_9AG4H12`. 
+
+## Anti-Debugging Measures
+
+!!! question "Some Denuvo titles have Anti-Debugging Measures"
+
+    However it is unclear whether it is an optional Denuvo component or additional DRM from the publisher.
+
+!!! info
+
+    Some SEGA games circa 2017 featuring Denuvo also have an anti-debug measure where `ntdll.DbgUiRemoteBreakin` will
+    constantly be rewritten with  `ret` (0xC3) on a background thread to prevent debugging.
+
+    It is usually easy to patch. Known affected titles include Sonic Forces and Puyo Puyo Tetris.

docs/Loader/Copy-Protection/Windows-SafeDisc.md

@@ -0,0 +1,43 @@
+# SafeDisc
+
+!!! error "These games cannot be played on Wine or Windows 7+"
+
+SafeDisc is not supported on Windows 7 and later, or on Wine.
+
+This is due to the fact that SafeDisc requires a driver. Wine won't run kernel drivers,
+and Windows 7 (with updates) and later have blacklisted the driver.
+
+## Detection
+
+### SafeDisc V1
+
+Unknown.
+
+### SafeDisc V2, V3, V4
+
+Search for string `BoG_ *90.0&!!  Yy>`.
+Should usually be after Section Headers in PE header.
+
+After this magic string, you can also extract version (if you feel like it).
+It comes as set of `u32` integers right before section end.
+
+Verified this to work with following games:
+
+- SafeDisc V3 Confirmed with `Sims 2`
+- SafeDisc V4 Confirmed with `Assasin's Creed` & `Sonic Heroes`
+
+!!! tip "If you feel adventurous, you can also check for section named `stxt371`."
+
+## Mitigation Strategies
+
+Tell the user to get a DRM free version of the game.<br/>
+This may either be a DRM-free release from the publisher (if possible), or a cracked version.
+
+That's all.
+
+!!! warning
+
+    Please do not distribute or post linked to cracked EXE files.
+
+    Binary diffs (e.g. xdelta, VCDiff) patches that convert legal installs to community preferred
+    game version(s) are ok, but not redistribution of unmodified game files.

mkdocs.yml

@@ -64,8 +64,9 @@ nav:
         - Other: Loader/Platforms/Other.md
     - Copy Protection:
         - About: Loader/Copy-Protection/About.md
-        - Windows - Steam: Loader/Copy-Protection/Windows-Steam.md
+        - Windows - Denuvo: Loader/Copy-Protection/Windows-Denuvo.md
         - Windows - MS Store: Loader/Copy-Protection/Windows-MSStore.md
+        - Windows - Steam: Loader/Copy-Protection/Windows-Steam.md
     - Backends:
         - About: Loader/Backends/About.md
         - Native: Loader/Backends/Native.md