al-khaser is a PoC "malware" application with good intentions that aims to stress your anti-malware system.
It performs a bunch of common malware tricks with the goal of seeing if you stay under the radar.
Usage
root@kitploit:~
$ ./al-khaser.exe -h
Usage: al-khaser.exe [OPTIONS]
Options:
--check <type> Enable specific check(s). Can be used multiple times. Valid types are:
TLS (Thread Local Storage callback checks)
DEBUG (Anti-debugging checks)
INJECTION (Code injection checks)
GEN_SANDBOX (Generic sandbox checks)
VBOX (VirtualBox detection)
VMWARE (VMware detection)
VPC (Virtual PC detection)
QEMU (QEMU detection)
KVM (KVM detection)
XEN (Xen detection)
WINE (Wine detection)
PARALLELS (Parallels detection)
HYPERV (Hyper-V detection)
CODE_INJECTIONS (Additional code injection techniques)
TIMING_ATTACKS (Timing/sleep-based sandbox evasion)
DUMPING_CHECK (Dumping memory/process checks)
ANALYSIS_TOOLS (Analysis tools detection)
ANTI_DISASSM (Anti-disassembly checks)
--sleep <seconds> Set sleep/delay duration in seconds (default: 600).
--delay <seconds> Alias for --sleep.
-h, --help Show this help message and exit.
Examples:
al-khaser.exe --check DEBUG --check TIMING_ATTACKS --sleep 30
al-khaser.exe --check VMWARE --check QEMU
al-khaser.exe --sleep 30
Download
You can download built binaries (x86, x64) from this project's releases page. The password for the 7zs can be found here.
Possible uses
You are making an anti-debug plugin and you want to check its effectiveness.
You want to ensure that your sandbox solution is hidden enough.
Or you want to ensure that your malware analysis environment is well hidden.
Please, if you encounter any of the anti-analysis tricks which you have seen in a malware, don't hesitate to contribute.
Features
Anti-debugging attacks
IsDebuggerPresent
CheckRemoteDebuggerPresent
Process Environment Block (BeingDebugged)
Process Environment Block (NtGlobalFlag)
ProcessHeap (Flags)
ProcessHeap (ForceFlags)
Low Fragmentation Heap (LFH)
NtQueryInformationProcess (ProcessDebugPort)
NtQueryInformationProcess (ProcessDebugFlags)
NtQueryInformationProcess (ProcessDebugObject)
WudfIsAnyDebuggerPresent
WudfIsKernelDebuggerPresent
WudfIsUserDebuggerPresent
NtSetInformationThread (HideThreadFromDebugger)
NtQueryObject (ObjectTypeInformation)
NtQueryObject (ObjectAllTypesInformation)
CloseHanlde (NtClose) Invalide Handle
SetHandleInformation (Protected Handle)
UnhandledExceptionFilter
OutputDebugString (GetLastError())
Hardware Breakpoints (SEH / GetThreadContext)
Software Breakpoints (INT3 / 0xCC)
Memory Breakpoints (PAGE_GUARD)
Interrupt 0x2d
Interrupt 1
Trap Flag
Parent Process (Explorer.exe)
SeDebugPrivilege (Csrss.exe)
NtYieldExecution / SwitchToThread
TLS callbacks
Process jobs
Memory write watching
Page exception breakpoint detection
API hook detection (module bounds based)
Anti-injection
Enumerate modules with EnumProcessModulesEx (32-bit, 64-bit, and all options)
Enumerate modules with ToolHelp32
Enumerate the process LDR structures with LdrEnumerateLoadedModules
Enumerate the process LDR structures directly
Walk memory with GetModuleInformation
Walk memory for hidden modules
Anti-Dumping
Erase PE header from memory
SizeOfImage
Timing Attacks [Anti-Sandbox]
RDTSC (with CPUID to force a VM Exit)
RDTSC (Locky version with GetProcessHeap & CloseHandle)
Sleep -> SleepEx -> NtDelayExecution
Sleep (in a loop a small delay)
Sleep and check if time was accelerated (GetTickCount)
ayoubfaouzi/al-khaser
