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XAPI: Minor Update with 2 new symbols #163

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merged 2 commits into from
Sep 22, 2022
Merged

XAPI: Minor Update with 2 new symbols #163

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0738e87
xapi: Lower XReadMUMetaData signature from 4831 to 4242
RadWolfie Sep 22, 2022
e7fed9f
xapi: Add 2 signatures for read/write name to drive letter
RadWolfie Sep 22, 2022
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2 changes: 2 additions & 0 deletions include/xref/xapilib.def
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Original file line number Diff line number Diff line change
Expand Up @@ -100,6 +100,8 @@ XREF_SYMBOL(XMountAlternateTitleA)
XREF_SYMBOL(XMountMUA)
XREF_SYMBOL(XMountMURootA)
XREF_SYMBOL(XMountUtilityDrive)
XREF_SYMBOL(XMUNameFromDriveLetter)
XREF_SYMBOL(XMUWriteNameToDriveLetter)
XREF_SYMBOL(XReadMUMetaData)
XREF_SYMBOL(XRegisterThreadNotifyRoutine)
XREF_SYMBOL(XSetProcessQuantumLength)
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68 changes: 68 additions & 0 deletions src/OOVPADatabase/Xapi/3911.inl
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Expand Up @@ -1825,3 +1825,71 @@ OOVPA_SIG_MATCH(
OV_MATCH(0x4C, 0xE8),
//
);

// ******************************************************************
// * XMUNameFromDriveLetter
// ******************************************************************
OOVPA_SIG_HEADER_XREF(XMUNameFromDriveLetter,
3911,
XRefThree)
OOVPA_SIG_MATCH(

// test [g_XapiMountedMUs], edx
XREF_ENTRY(0x14, XREF_g_XapiMountedMUs),

// call NtOpenFile
XREF_ENTRY(0x6C, XREF_KT_FUNC_NtOpenFile),

// call NtFsControlFile
XREF_ENTRY(0xA0, XREF_KT_FUNC_NtFsControlFile),

// push ebp
OV_MATCH(0x00, 0x55),

// sub esp, 0x74
OV_MATCH(0x03, 0x83, 0xEC, 0x74),

// push 0x80100000 // GENERIC_READ | SYNCHRONIZE
OV_MATCH(0x59, 0x68, 0x00, 0x00, 0x10, 0x80),

// call NtOpenFile
OV_MATCH(0x6A, 0xFF, 0x15),

// call NtFsControlFile
OV_MATCH(0x9E, 0xFF, 0x15),
//
);

// ******************************************************************
// * XMUWriteNameToDriveLetter
// ******************************************************************
OOVPA_SIG_HEADER_XREF(XMUWriteNameToDriveLetter,
3911,
XRefThree)
OOVPA_SIG_MATCH(

// test [g_XapiMountedMUs], edx
XREF_ENTRY(0x14, XREF_g_XapiMountedMUs),

// call NtOpenFile
XREF_ENTRY(0x6C, XREF_KT_FUNC_NtOpenFile),

// call NtFsControlFile
XREF_ENTRY(0xAE, XREF_KT_FUNC_NtFsControlFile),

// push ebp
OV_MATCH(0x00, 0x55),

// sub esp, 0x74
OV_MATCH(0x03, 0x83, 0xEC, 0x74),

// push 0x40100000 // GENERIC_WRITE | SYNCHRONIZE
OV_MATCH(0x59, 0x68, 0x00, 0x00, 0x10, 0x40),

// call NtOpenFile
OV_MATCH(0x6A, 0xFF, 0x15),

// call NtFsControlFile
OV_MATCH(0xAC, 0xFF, 0x15),
//
);
19 changes: 19 additions & 0 deletions src/OOVPADatabase/Xapi/4242.inl
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Original file line number Diff line number Diff line change
Expand Up @@ -253,3 +253,22 @@ OOVPA_SIG_MATCH(

//
);

// ******************************************************************
// * XReadMUMetaData
// ******************************************************************
OOVPA_SIG_HEADER_XREF(XReadMUMetaData,
4242,
XRefOne)
OOVPA_SIG_MATCH(

XREF_ENTRY(0x31, XREF_g_XapiMountedMUs),

// push ebp
// mov ebp,esp
OV_MATCH(0x00, 0x55, 0x8B, 0xEC),

// mov WORD PTR [ebp-0x0E],0x3E
OV_MATCH(0x51, 0x66, 0xC7, 0x45, 0xF2, 0x3E, 0x00),
//
);
19 changes: 0 additions & 19 deletions src/OOVPADatabase/Xapi/4831.inl
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Expand Up @@ -229,25 +229,6 @@ OOVPA_SIG_MATCH(
//
);

// ******************************************************************
// * XReadMUMetaData
// ******************************************************************
OOVPA_SIG_HEADER_XREF(XReadMUMetaData,
4831,
XRefOne)
OOVPA_SIG_MATCH(

XREF_ENTRY(0x31, XREF_g_XapiMountedMUs),

// push ebp
// mov ebp,esp
OV_MATCH(0x00, 0x55, 0x8B, 0xEC),

// mov WORD PTR [ebp-0x0E],0x3E
OV_MATCH(0x51, 0x66, 0xC7, 0x45, 0xF2, 0x3E, 0x00),
//
);

// ******************************************************************
// * UnhandledExceptionFilter
// ******************************************************************
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6 changes: 4 additions & 2 deletions src/OOVPADatabase/Xapi_OOVPA.inl
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Expand Up @@ -77,6 +77,7 @@
// * XapiFiberStartup (3950, 4034, 4039, 4134, 4531, 4721, 5028, 5455)
// * timeKillEvent (3950, 4034, 5028, 5233)
// * timeSetEvent (4034, 5233)
// * XReadMUMetaData (3911, 3950, 4034, 4039, 4134)
// * Following OOVPA are invalid
// * CloseHandle (3911) // Has exact asm codes _ResetEvent@4
// * ReadFileEx (3911) // Has exact asm codes _WriteFileEx@20
Expand Down Expand Up @@ -365,7 +366,6 @@
// * XID_RemoveDevice
// * XLoadSectionA
// * XLoadSectionByHandle
// * XMUNameFromDriveLetter
// * XMUPortFromDriveLetterA
// * XMUSlotFromDriveLetterA
// * XOpenSoundtrackSong
Expand Down Expand Up @@ -483,7 +483,9 @@ OOVPATable XAPILIB_OOVPA[] = {
REGISTER_OOVPAS(XMountMUA, 3911, 4242),
REGISTER_OOVPAS(XMountMURootA, 3911, 4242),
REGISTER_OOVPAS(XMountUtilityDrive, 3911), // Final generic OOVPA: 3911; Removed: 0
REGISTER_OOVPAS(XReadMUMetaData, 4831),
REGISTER_OOVPAS(XMUNameFromDriveLetter, 3911), // Final generic OOVPA: 3911; Removed: 0
REGISTER_OOVPAS(XMUWriteNameToDriveLetter, 3911), // Final generic OOVPA: 3911; Removed: 0
REGISTER_OOVPAS(XReadMUMetaData, 4242),
REGISTER_OOVPAS(XRegisterThreadNotifyRoutine, 3911),
REGISTER_OOVPAS(XSetProcessQuantumLength, 4134),
REGISTER_OOVPAS(XUnmountMU, 3911, 4242),
Expand Down