al-khaser è un'applicazione PoC "malware" con buone intenzioni che mira a stressare il tuo sistema anti-malware.
Esegue una serie di trucchi comuni dei malware con l'obiettivo di vedere se rimani sotto il radar.
Utilizzo
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.
Esempi:
al-khaser.exe --check DEBUG --check TIMING_ATTACKS --sleep 30
al-khaser.exe --check VMWARE --check QEMU
al-khaser.exe --sleep 30
Download
Puoi scaricare i binari precompilati (x86, x64) dalla pagina delle release di questo progetto. La password per i file 7z si trova qui.
Possibili usi
Stai sviluppando un plugin anti-debug e vuoi verificarne l'efficacia.
Vuoi assicurarti che la tua soluzione sandbox sia abbastanza nascosta.
Oppure vuoi assicurarti che il tuo ambiente di analisi malware sia ben nascosto.
Per favore, se incontri uno dei trucchi anti-analisi che hai visto in un malware, non esitare a contribuire.
Funzionalità
Attacchi anti-debug
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
Attacchi temporali [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
