__full__ — Xworm-5.6-main.zip

If an instance of XWorm-5.6-main.zip or its active payload is discovered within an enterprise environment:

: Websites like VirusTotal offer free tools to upload and scan files for malware.

Blue teams hunting for XWorm-5.6-main.zip or its artifacts should look for these telltale signs:

The infected computer can be used as a "jump box" to launch attacks on other devices within the same local network. Why is it in a .zip file? XWorm-5.6-main.zip

Sophisticated campaigns have incorporated known vulnerabilities. One campaign exploited , a remote code execution vulnerability in Microsoft Equation Editor, to retrieve and execute XWorm payloads. Another leveraged CVE-2025-8088 , a path-traversal vulnerability affecting WinRAR versions 7.12 and earlier.

If you are investigating this specific archive for research or incident response, I can help you analyze its footprint. Let me know:

The shellcode uses process hollowing techniques to inject the final XWorm payload into legitimate Windows processes such as Msbuild.exe , RegSvcs.exe , or EQNEDT32.EXE . If an instance of XWorm-5

Typically delivered via multi-stage attacks beginning with themed phishing emails .

Originally authored by the threat actor known as "XCoder" (or Evilcoder), XWorm has mutated into one of the most prolific Malware-as-a-Service (MaaS) tools in the contemporary cybercrime landscape. Cybercriminals frequently package version 5.6 as a "cracked" or open-source leak. This makes it accessible to amateur "script kiddies" and sophisticated Advanced Persistent Threat (APT) actors alike.

The XWorm payload loads directly into memory without writing any decrypted executable to disk, making it invisible to traditional file-based antivirus scanning. If you are investigating this specific archive for

The initial script downloads additional malicious files from remote servers using Invoke-WebRequest .

If you find this file or suspect an infection, look for these common XWorm behaviors:

It is never safe to download or handle live malware on a system you use for daily work or that is connected to a network you don't fully control. Security researchers perform analysis in strictly isolated, offline virtual machines or sandbox environments specifically designed for this purpose. Trying to open this file on a personal computer is extremely dangerous.

The main branch tag in the ZIP name suggests this is the stable, recommended release by its developer (who goes by the alias “Xworm” on crimeware forums). As of late 2025, version 5.6 remains unpatched and widely effective against default antivirus configurations.

rule XWorm_5_6_Stub meta: description = "Detects XWorm RAT version 5.6 payloads" author = "ThreatIntel Team" strings: $s1 = "XWorm v5.6" wide ascii $s2 = "C2_Server_Address" ascii $s3 = 72 65 67 42 65 67 69 6E // "RegBegin" hex $op1 = 0F 85 ?? ?? 00 00 8B 45 // Anti-debug jump condition: uint16(0) == 0x5A4D and (all of ($s*) or $op1)