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1. #Process explorer drivers#
2. #Process explorer driver#
3. #Process explorer full#
4. #Process explorer portable#

In fact, Sophos and other security vendors have previously reported on multiple incidents where either Backstab, or a version of this driver, was used for malicious purposes.

#Process explorer driver#

The method of abusing the Process Explorer driver to bypass EDR systems isn’t new it was implemented in the open-source tool Backstab, first published in June 2021. This technique is commonly referred to as a “bring your own vulnerable driver” (BYOVD) attack. In contrast, the AuKill tool abused a legitimate, but out-of-date and exploitable, driver.

#Process explorer drivers#

In December 2022, Sophos, Microsoft, Mandiant, and SentinelOne reported that a number of attackers had used custom-built drivers to disable EDR products. This is not the first time we and other vendors reported on multiple threat groups simultaneously deploying software designed to kill EDR agents that protect computers. The tool was used during at least three ransomware incidents since the beginning of 2023 to sabotage the target’s protection and deploy the ransomware: In January and February, attackers deployed Medusa Locker ransomware after using the tool in February, an attacker used AuKill just prior to deploying Lockbit ransomware. The AuKill tool abuses an outdated version of the driver used by version 16.32 of the Microsoft utility, Process Explorer, to disable EDR processes before deploying either a backdoor or ransomware on the target system. To sum it up, Process Explorer is an excellent tool for monitoring and controlling processes.Over the past several months, Sophos X-Ops has investigated multiple incidents where attackers attempted to disable EDR clients with a new defense evasion tool we’ve dubbed AuKill.

No error dialogs were shown in our tests, and the app did not hang or crash. It is very responsive to commands and shows some pretty detailed information. Evaluation and conclusionĬPU and RAM consumption was low during Process Explorer's runtime in our tests. What's more, suspicious or unknown files can be submitted to VirusTotal to run malware checkups using multiple antivirus applications at the same time. Process Explorer also offers extensive information concerning a particular process such as performance, environment, TCP/IP and threads properties. System information gathers the CPU, RAM, GPU, I/O, disk, network and commit usage history and shows it in graphs.

#Process explorer full#

It is possible to terminate, suspend and resume or restart a process, bring it to the front, minimize or maximize it, change its priority and affinity, find out its full paths and command line, as well as to display a secondary pane to view DLL and handle information. Manipulate the processes' behavior and view system information new objects, system processes, relocated DLLs). They are color-coded in order to tell them apart by type (e.g. The main window is neatly organized and displays all processes in a tree view to let users find out any child processes which depend on them. The first thing you should know about Process Explorer is that it creates a tray icon at launch to point out the current temperature for any preferred sensor (default is CPU). System tray indicators and hierarchically displayed processes What's more, Process Explorer does not alter the Windows registry in any way, nor create unnecessary shortcuts or Start menu entries which clutter the disk.

#Process explorer portable#

The main advantage of a portable tool is that it can be saved to a USB flash disk and carried everywhere to use it on any PC seamlessly.

There is no installation necessary, so you can simply launch the executable file to start the app.

Aimed at hardcore PC users who want to look under the hood of their computers and find out how they work, the tool brings many powerful options to the table, such as the ability to suspend processes or find out all resources used by a particular process. Process Explorer is a lightweight and portable application that offers advanced features compared to the Windows Task Manager when it comes to monitoring running processes and making some changes to their behavior.