4/16/2023 0 Comments Adobe updater malware![]() During the mining process, infected computers begun to operate in a speed slower than usual, owning to the fact that the cryptominer eats processing power. An infected Windows computer started to generate network traffic over TCP port 14444, a port associated with XMRig mining code in an brazen attempt to start mining the Monero cryptocurrency. Researchers investigating the fake Flash updater noticed their Windows executables file names began with AdobeFlashPlayer and also evidently came from a non-Adobe source. Since the malware is installed in the background, the user will not notice anything suspicious. Said fake Flash update installers, while updating the victim’s Flash Player will concurrently install an XMRig cryptocurrency miner. These recent type of fake updaters use pop-up notifications from the legitimate Flash installer, in an attempt to appear legitimate. Usually, when run, the typical fake update installer will silently install the malicious payload and show no other visible activity. We are more familiar with seeing such disguised malware with just one purpose to take over the user’s system after being installed. Cyber criminals exploit users’ ignorance/gullibility by hiding malware inside seemingly legitimate update packages. The former is to secure yourself and online accounts, and the latter to mitigate any potential company damage.Īttacks like these are easily spread through spear phishing emails, so be vigilant in your online behaviors.Hiding malicious packages in update installers is nothing new. ![]() Malwarebytes recommends changing passwords and contacting your business IT department if you were infected. If you’d like to manually check for infection, the backdoor malware installs the following various components: The free software will detect Snake as OSX.Snake and remove it. To easily check if a system has been infected by the Snake backdoor malware, run a scan with Malwarebytes for Mac. Apple has revoked that developer’s certificate to help subdue further damage. Luckily, if anyone does have the Adobe Flash file on their system, macOS’ Gatekeeper will no longer show the developer certificate as valid. This leads Fox-IT to believe it may not have even been operational yet, but would soon be used on targets. The Snake malware version currently out in the wild contains debug code and its certificate was signed in February of this year. How to check if you’re infected with Snake’s backdoor malware By using Apple’s LaunchDaemon service, it could ensure that the backdoor would quickly relaunch if ever closed. During this install, it would also add the backdoor malicious files to the macOS system folders and keep them persistent. If a user had proceeded with the installation regardless, handily enough the malware would install a legitimate copy of Adobe Flash Player on the system. Most users wouldn’t think to check an application’s bundle before installing the app. Even the application’s bundle structures looks odd when compared to a normal one. Upon closer inspection, the signature comes from a developer named Addy Symonds, and not the expected Adobe. zip file initially appears legitimate because of its valid signed certificate issued through Apple. This file contains a legitimate, but backdoored, version of the Adobe’s Flash Player. On macOS, Snake is distributed through a. Today’s macOS variant isn’t one you’ll randomly receive, but the manner in which it hides itself is important. Compared to other prolific attackers with alleged ties to Russia…Snake’s code is significantly more sophisticated, it’s infrastructure more complex and targets more carefully selected. Researchers who have previously analyzed compromises where Snake was used have attributed the attacks to Russia. ![]() ![]() Fox-ITdescribes it as a “relatively complex malware framework” citing a research paper from the Swiss government’s Computer Emergency Response Team.įox-IT makes it clear that attacks involving Snake are highly targeted. Malwarebytes reports Snake has been infecting Windows systems as far back as 2008 and even having a Linux variant discovered back in 2014. The Snake malware, and the variants it derives from, has been around for nearly a decade now. These certificates were created to help validate applications with Gatekeeper, but lately have been used to spread malicious software. This is the second reported malware incident in the past week using a valid certificate. ![]() Having used a valid developer’s certificate, the malware was set to run free on macOS even with Gatekeeper enabled. A new piece of backdoor malware originally discovered on Windows has found a new home in macOS. Disguising itself as a legitimate Adobe Flash Player installer, the malware burrows into pre-existing macOS folders making it harder to spot. ![]()
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