OTX Bot<p>Remcos RAT Malware Disguised as Major Carrier's Waybill</p><p>A sophisticated malware campaign has been discovered, utilizing the Remcos RAT disguised as a shipping company waybill. The attack begins with an email containing an HTML script, which when executed, downloads a JavaScript file. This file creates and downloads several components, including a configuration file, an encoded Remcos binary, a legitimate AutoIt loader, and a malicious AutoIt script. The AutoIt script employs evasion techniques, establishes persistence, decrypts the Remcos binary, and executes shellcode. The shellcode injects Remcos into a legitimate process (RegSvcs.exe) using various API calls. The Remcos RAT, once active, can steal information and execute remote commands based on C2 instructions. The campaign demonstrates the evolving tactics of cybercriminals, emphasizing the need for caution when handling emails from unknown sources.</p><p>Pulse ID: 67ebfc9f824c09e5b3ce991b<br>Pulse Link: <a href="https://otx.alienvault.com/pulse/67ebfc9f824c09e5b3ce991b" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">otx.alienvault.com/pulse/67ebf</span><span class="invisible">c9f824c09e5b3ce991b</span></a> <br>Pulse Author: AlienVault<br>Created: 2025-04-01 14:47:59</p><p>Be advised, this data is unverified and should be considered preliminary. Always do further verification.</p><p><a href="https://social.raytec.co/tags/Autoit" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Autoit</span></a> <a href="https://social.raytec.co/tags/CyberSecurity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CyberSecurity</span></a> <a href="https://social.raytec.co/tags/Email" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Email</span></a> <a href="https://social.raytec.co/tags/HTML" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HTML</span></a> <a href="https://social.raytec.co/tags/ICS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ICS</span></a> <a href="https://social.raytec.co/tags/InfoSec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>InfoSec</span></a> <a href="https://social.raytec.co/tags/Java" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Java</span></a> <a href="https://social.raytec.co/tags/JavaScript" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JavaScript</span></a> <a href="https://social.raytec.co/tags/Malware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Malware</span></a> <a href="https://social.raytec.co/tags/OTX" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OTX</span></a> <a href="https://social.raytec.co/tags/OpenThreatExchange" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenThreatExchange</span></a> <a href="https://social.raytec.co/tags/RAT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RAT</span></a> <a href="https://social.raytec.co/tags/RCE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RCE</span></a> <a href="https://social.raytec.co/tags/Remcos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Remcos</span></a> <a href="https://social.raytec.co/tags/RemcosRAT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RemcosRAT</span></a> <a href="https://social.raytec.co/tags/ShellCode" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ShellCode</span></a> <a href="https://social.raytec.co/tags/bot" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>bot</span></a> <a href="https://social.raytec.co/tags/AlienVault" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AlienVault</span></a></p>