Skip to main content

DoubleAgent Attack Turns Your Antivirus Into Malware And Hijacks Your PC




Short Bytes: Cybellum security researchers have uncovered a new attack mechanism that can be used to take control of your antivirus and turn it into a malware. Called DoubleAgent, this attack exploits an old and undocumented vulnerability in Windows operating system. This Zero Day code injection technique affects all major antivirus vendors and has the power to hijack permissions.
The security researchers from Cybellum have found a new technique that can be used by the cybercriminals to hijack your computer by injecting malicious code. This new Zero-Day attack can be used to take full control over all the major antivirus software. Instead of hiding from the antivirus, this attack takes control of the antivirus itself.
Called DoubleAgent, this attack makes use of a 15-year-old legitimate feature of Windows (read vulnerability)–that’s why it can’t be patched. It affects all versions of Microsoft Windows. Cybellum blog mentions that this flaw is still unpatched by most antivirus vendors. Cybellum has also tested the attack and reported it to all major antivirus vendors. But, so far only Malwarebytes and AVG have issued a patch. Trend Micro is planning to push a release in upcoming weeks.


The list of affected vendors are:
  • Avast
  • AVG
  • Avira
  • Bitdefender
  • Trend Micro
  • Comodo
  • ESET
  • F-Secure
  • Kaspersky
  • Malwarebytes
  • McAfee
  • Panda
  • Quick Heal
  • Norton

How does DoubleAgent attack work?

Some of you might be knowing about Microsoft Application Verifier. It’s a Windows tool that comes loaded with all the versions of Microsoft Windows. Whenever an application tries to run, Application Verifier verifies it.
Cybellum researchers discovered an undocumented ability that can allow an attacker to inject a custom verifier into any application. By doing so, the attacker can gain complete control over the computer. This attack gives an attacker the ability to inject any DLL into any process. This ad injection takes place extremely early during the victim’s boot process.
DoubleAgent can even continue injecting code after reboots. This makes it a perfect persistency technique. Even if the victim would completely uninstall and reinstall the program, the attacker’s DLL would still be injected when the process executes.
If we talk about the attack vector that targets antivirus software, DoubleAgent has the ability to turn an antivirus into malware, modify the internal behavior of an antivirus, modify the trusted nature of an antivirus, destroy the system, or denial of service.
Apart from targeting the antivirus, the other attack vectors deal with installing persistent malware, hijacking permissions, altering process behavior, attacking other user sessions, etc.
You can find more technical details about DoubleAgent on Cybellum’s website. The DoubleAgent source code is available on GitHub.
Cybellum researchers have mentioned that the fix for the vendors is to adopt Microsoft’s newer design concept called Protected Processes. But, this mechanism has only been implemented in Windows Defender.

Taking control over Norton Antivirus:

Taking control over Comodo Antivirus:


Comments

Popular posts from this blog

fix idm integration on chrome

Chrome Browser Integration I do not see IDM extension in Chrome extensions list. How can I install it?  How to configure IDM extension for Chrome? Please note that all IDM extensions that can be found in Google Store are fake and should not be used. You need to install IDM extension manually from IDM installation folder. Read in step 2 how to do it . 1. Please update IDM to the latest version by using  "IDM Help->Check for updates..."  menu item 2.  I don't see  "IDM Integration module"  extension in the list of extensions in  Chrome . How can I install it? Press on  Chrome  menu ( arrow 1  on the image), select  "Settings"  menu item ( arrow 2  on the image) and then select  "Extensions"  tab ( arrow 3  on the image). After this open IDM installation folder ( "C:\Program Files (x86)\Internet Download Manager"  by default,  arrow 4  on the image) and drag and drop  "IDMGCExt.crx"  ( arrow 5  on the image) file int

sxhkd volume andbrightness config for dwm on void

xbps-install  sxhkd ------------ mkdir .config/sxhkd cd .config/sxhkd nano/vim sxhkdrc -------------------------------- XF86AudioRaiseVolume         amixer -c 1 -- sset Master 2db+ XF86AudioLowerVolume         amixer -c 1 -- sset Master 2db- XF86AudioMute         amixer -c 1 -- sset Master toggle alt + shift + Escape         pkill -USR1 -x sxhkd XF86MonBrightnessUp          xbacklight -inc 20 XF86MonBrightnessDown          xbacklight -dec 20 ------------------------------------------------------------- amixer -c card_no -- sset Interface volume run alsamixer to find card no and interface names xbps-install -S git git clone https://git.suckless.org/dwm xbps-install -S base-devel libX11-devel libXft-devel libXinerama-devel  vim config.mk # FREETYPEINC = ${X11INC}/freetype2 #comment for non-bsd make clean install   cp config.def.h config.h vim config.h xbps-install -S font-symbola #for emoji on statusbar support     void audio config xbps-i

Hidden Wiki

Welcome to The Hidden Wiki New hidden wiki url 2015 http://zqktlwi4fecvo6ri.onion Add it to bookmarks and spread it!!! Editor's picks Bored? Pick a random page from the article index and replace one of these slots with it. The Matrix - Very nice to read. How to Exit the Matrix - Learn how to Protect yourself and your rights, online and off. Verifying PGP signatures - A short and simple how-to guide. In Praise Of Hawala - Anonymous informal value transfer system. Volunteer Here are five different things that you can help us out with. Plunder other hidden service lists for links and place them here! File the SnapBBSIndex links wherever they go. Set external links to HTTPS where available, good certificate, and same content. Care to start recording onionland's history? Check out Onionland's Museum Perform Dead Services Duties. Introduction Points Ahmia.fi - Clearnet search engine for Tor Hidden Services (allows you