CVE-2025-63685

Quark Cloud Drive v3.23.2 has a DLL Hijacking vulnerability. This vulnerability stems from the insecure loading of system libraries. Specifically, the application does not validate the path or signature of regsvr32.exe it loads. An attacker can place a crafted malicious DLL in the application's...

EUVD-2025-198336

Quark Cloud Drive v3.23.2 has a DLL Hijacking vulnerability. This vulnerability stems from the insecure loading of system libraries. Specifically, the application does not validate the path or signature of regsvr32.exe it loads. An attacker can place a crafted malicious DLL in the application's...

Exploit for CVE-2025-49144

CVE-2025-49144PoC 📌 CVE-2025-...

Regsvr32.exe (.sct) Command Delivery Server

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Regsvr32.exe .sct Command Delivery Server', 'Description' = %q This module uses the Regsvr32.exe Application Whitelisting Bypass technique as a w...

Researchers Uncover New Attempts by Qakbot Malware to Evade Detection

The operators behind the Qakbot malware are transforming their delivery vectors in an attempt to sidestep detection. "Most recently, threat actors have transformed their techniques to evade detection by using ZIP file extensions, enticing file names with common formats, and Excel XLM 4.0 to trick...

Researchers Warn of 'Raspberry Robin' Malware Spreading via External Drives

Cybersecurity researchers have discovered a new Windows malware with worm-like capabilities and is propagated by means of removable USB devices. Attributing the malware to a cluster named "Raspberry Robin," Red Canary researchers noted that the worm "leverages Windows Installer to reach out to...

Exchange Servers Speared in IcedID Phishing Campaign

The ever-evolving banking trojan IcedID is back again with a phishing campaign that uses previously compromised Microsoft Exchange servers to send emails that appear to come from legitimate accounts. Attackers also are using stealthy new payload-delivery tactics to spread the modular malware...

Cybercriminals Swarm Windows Utility Regsvr32 to Spread Malware

A Windows living-off-the-land binary LOLBin known as Regsvr32 is seeing a big uptick in abuse of late, researchers are warning, mainly spreading trojans like Lokibot and Qbot. LOLBins are legitimate, native utilities used daily in various computing environments, that cybercriminals use to evade...

Living Off the Land: How to Defend Against Malicious Use of Legitimate Utilities

Living-off-the-land binaries LOLBins are no joke: Cyberattackers have been increasingly making use of them to hide their malicious work from security solutions. It’s time for threat hunters and IT security staff to familiarize themselves with how these are used in the attack chains of some of the...

The vulnerability of the operating environment of the information protection software “Blockhost-Net” and “Blockhost-Net K” allows a perpetrator to execute the application through the operating system’s regsvr32 component, bypassing the closed-loop programming environment.

The vulnerability of the operating environments of the information protection software “Blockhost-Net” and “Blockhost-Net K” is related to the use of the regsvr32 function to access system components. Exploiting this vulnerability could allow a perpetrator with administrative privileges to execut...

Chinese APT group targets India and Hong Kong using new variant of MgBot malware

This blog post was authored by Hossein Jazi and Jérôme Segura On July 2, we found an archive file with an embedded document pretending to be from the government of India. This file used template injection to drop a malicious template which loaded a variant of Cobalt Strike. One day later, the sam...

Watch Out! Microsoft Spotted Spike in Astaroth Fileless Malware Attacks

Security researchers at Microsoft have released details of a new widespread campaign distributing an infamous piece of fileless malware that was primarily being found targeting European and Brazilian users earlier this year. Dubbed Astaroth, the malware trojan has been making the rounds since at...

New malware found using Google Drive as its command-and-control server

Since most security tools also keep an eye on the network traffic to detect malicious IP addresses, attackers are increasingly adopting infrastructure of legitimate services in their attacks to hide their malicious activities. Cybersecurity researchers have now spotted a new malware attack campai...

Script Web Delivery

This module quickly fires up a web server that serves a payload. The module will provide a command to be run on the target machine based on the selected target. The provided command will download and execute a payload using either a specified scripting language interpreter or "squiblydoo" via...

Koadic - COM Command & Control Framework (JScript RAT)

Koadic, or COM Command & Control, is a Windows post-exploitation rootkit similar to other penetration testing tools such as Meterpreter and Powershell Empire. The major difference is that Koadic does most of its operations using Windows Script Host a.k.a. JScript/VBScript, with compatibility in t...

Cerber ransomware delivered in format of a different order of Magnitude

As a follow up to our study into the Magnitude exploit kit and its gate which we profiled in a previous blog post, we take a look at an interesting technique used to distribute the Cerber ransomware. Exploit kits are a very effective means of serving malicious payloads and an important aspect is...

SAP GUI regsvr32.exe Rule Security Policy Bypass (CVE-2017-6950)

A security policy bypass vulnerability has been reported in SAP GUI. The vulnerability is due to improper implementation of client side security policies regarding the Windows application regsvr32.exe. A remote attacker could exploit this vulnerability by enticing an user to connect to a maliciou...

Spear Phishing Techniques Used in Attacks Targeting the Mongolian Government

Introduction FireEye recently observed a sophisticated campaign targeting individuals within the Mongolian government. Targeted individuals that enabled macros in a malicious Microsoft Word document may have been infected with Poison Ivy, a popular remote access tool RAT that has been used for...

Regsvr32.exe (.sct) Application Whitelisting Bypass Server

This module requires Metasploit: http://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Regsvr32.exe .sct Application Whitelisting Bypass Server', 'Description' = %q This module simplifies the Regsvr32.exe Application Whitelisting...

Regsvr32.exe (.sct) Command Delivery Server

This module uses the Regsvr32.exe Application Whitelisting Bypass technique as a way to run a command on a target system. The major advantage of this technique is that you can execute a static command on the target system and dynamically and remotely change the command that will actually run by...