Skrull

Skrull Skrull은 AV/EDR의 자동 샘플 제출 및 커널의 시그니처 스캐닝을 방지하는 멀웨어 DRM입니다. Process Ghosting 기법을 사용하여 피해자 시스템에서 멀웨어를 실행할 수 있는 런처를 생성합니다. 또한 런처는 완전히 복제 방지되어 있으며 제출 시 자연스럽게 손상됩니다. 이는 ROOTCON 및 HITCON 2021 발표의 개념 증명입니다. Skrull Like A King: From File Unlink to Persistence 및 Skrull Like A King：從重兵看守的天眼防線殺出重圍 를...

Cruciferra Crypter Uses BYOVD and Process Ghosting to Hide Windows Malware

The China-linked cybercrime group behind the use of income tax-related phishing lures targeting Indian taxpayers, tax professionals, and corporate finance teams has been observed using a sophisticated crypter service called Cruciferra. According to a new analysis by Proofpoint, Cruciferra has bee...

New CherryLoader Malware Mimics CherryTree to Deploy PrivEsc Exploits

A new Go-based malware loader called CherryLoader has been discovered by threat hunters in the wild to deliver additional payloads onto compromised hosts for follow-on exploitation. Arctic Wolf Labs, which discovered the new attack tool in two recent intrusions, said the loader's icon and name...

Using process creation properties to catch evasion techniques

We developed a robust detection method in Microsoft Defender for Endpoint that can catch known and unknown variations of a process execution class used by attackers to evade detection. This class of stealthy execution techniques breaks some assumptions made by security products and enables...

Skrull - A Malware DRM, That Prevents Automatic Sample Submission By AV/EDR And Signature Scanning From Kernel

Skrull is a malware DRM, that prevents Automatic Sample Submission by AV/EDR and Signature Scanning from Kernel. It generates launchers that can run malware on the victim using the Process Ghosting technique. Also, launchers are totally anti-copy and naturally broken when got submitted. It's a...

Researchers Uncover 'Process Ghosting' — A New Malware Evasion Technique

Cybersecurity researchers have disclosed a new executable image tampering attack dubbed "Process Ghosting" that could be potentially abused by an attacker to circumvent protections and stealthily run malicious code on a Windows system. "With this technique, an attacker can write a piece of malwar...