metame

metame metame is a simple metamorphic code engine for arbitrary executables. From Wikipedia: Metamorphic code is code that when run outputs a logically equivalent version of its own code under some interpretation. This is used by computer viruses to avoid the pattern recognition of anti-virus...

metame

metame metame 是一个用于任意可执行文件的简单变形代码引擎。 来自维基百科： 变形代码是指在运行时，能在某种解释下输出自身代码的逻辑等价版本的代码。 这被计算机病毒用来规避杀毒软件的模式识别。 metame 的实现方式如下： 1. 打开给定的二进制文件并分析代码 2. 随机用逻辑等价且大小相同的指令替换指令 3. 复制并修补原始二进制文件以生成变异版本 目前支持以下架构： x86 32 bits x86 64 bits 此外，它支持多种文件格式，因为使用了 radare2 进行文件解析和代码分析。 变异前后的代码示例： 提示：此片段中已替换了两条指令。 这里还有一个关于如何将...

SeqShield: A Behavioral Analysis Approach to Uncover Rootkits

Rootkits are among the most elusive types of malware, capable of bypassing traditional static analysis methods due to their metamorphic behavior. Signature-based detection techniques struggle against these threats, necessitating a shift toward dynamic analysis approaches. We propose SeqShield, a...

Towards Certified Malware Detection: Provable Guarantees against Evasion Attacks

Machine learning-based static malware detectors remain vulnerable to adversarial evasion techniques, such as metamorphic engine mutations. To address this vulnerability, we propose a certifiably robust malware detection framework based on randomized smoothing through feature ablation and targeted...

A Novel Study on Intelligent Methods and Explainable AI for Dynamic Malware Analysis

Deep learning models are one of the security strategies, trained on extensive datasets, and play a critical role in detecting and responding to these threats by recognizing complex patterns in malicious code. However, the opaque nature of these models-often described as "black boxes"-makes their...

MT4DP: Data Poisoning Attack Detection for DL-Based Code Search Models Via Metamorphic Testing

Recently, several studies have indicated that data poisoning attacks pose a severe security threat to deep learning-based DL-based code search models. Attackers inject carefully crafted malicious patterns into the training data, misleading the code search model to learn these patterns during...

ROSA: Finding Backdoors with Fuzzing

A code-level backdoor is a hidden access, programmed and concealed within the code of a program. For instance, hard-coded credentials planted in the code of a file server application would enable maliciously logging into all deployed instances of this application. Confirmed software supply chain...

High - TemporalGovernor.sol - Malicious Governance Propsoals can interact with Metamorphic Contracts resulting in Business Critical Risk to the Protocol

Lines of code Vulnerability details High - TemporalGovernor.sol - Malicious Governance Propsoals can interact with Metamorphic Contracts resulting in Business Critical Risk to the Protocol Impact Due to the permisionless governance execution method, with no ascribed or implemented security...

Hackers Targeting Biomanufacturing Facilities With Tardigrade Malware

An advanced persistent threat APT has been linked to cyberattacks on two biomanufacturing companies that occurred this year with the help of a custom malware loader called "Tardigrade." That's according to an advisory published by Bioeconomy Information Sharing and Analysis Center BIO-ISAC this...

BloXor - A Metamorphic Block Based XOR Encoder

A Metamorphic Block Based XOR Encoder. This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework require 'rex/encoder/bloxor/bloxor' BloXor is a cross architecture metamorphic block based xor encoder/decoder for Metasploit...