Faux Bitwarden websites are pushing installers purportedly for the open-source password supervisor that carry a brand new password-stealing malware that safety researchers name ZenRAT.
The malware is distributed to Home windows customers via web sites that imitate the professional Bitwarden web site and depend on typosquatting to idiot potential victims.
Targeted on Home windows customers
The aim of ZenRAT is to gather browser knowledge and credentials together with particulars in regards to the contaminated host, a habits in line with an info stealer.
Cybercriminals can use the main points to create a fingerprint of the compromised system that can be utilized to entry an account as if the professional consumer logged in.
Safety researchers at cybersecurity firm Proofpoint found ZenRAT after receiving in August a pattern of the malware from Jérôme Segura, Senior Director of Risk Intelligence at Malwarebytes.
The distribution level was “a really convincing lookalike to the actual bitwarden.com” with a site identify particularly chosen to trick guests into believing they had been accessing the official useful resource – bitwariden[.]com.
supply: Proofpoint
Contained in the pretend Bitwarden set up package deal, Proofpoint researchers discovered a malicious .NET executable that may be a distant entry trojan (RAT) with info-stealing options they’re now monitoring as ZenRAT.
The malicious web site offers the pretend Bitwarden package deal solely to Home windows customers, in any other case, it redirects to a cloned web page of an opensource.com article in regards to the password supervisor.
When attempting to obtain the Bitwarden model for Linux or Mac, the consumer is redirected to the official obtain web page of the software program, Proofpoint notes.
The malicious Bitwarden installer for Home windows is delivered from crazygameis[.]com, one other pretend URL for the professional browser-based gaming platform CrazyGames.
supply: Proofpoint
The researchers do not understand how potential victims land on the pretend Bitwarden web site however phishing campaigns via Google advertisements have been used prior to now to focus on Bitwarden customers particularly.
Stealing knowledge, evading evaluation
As soon as operating, ZenRAT makes use of WMI queries and different system instruments to gather knowledge in regards to the host, which incorporates:
- CPU Identify
- GPU Identify
- OS Model
- Put in RAM
- IP handle and Gateway
- Put in Antivirus
- Put in Purposes
The small print above are delivered to the command and management (C2) server in a ZIP archive that additionally contains knowledge and credentials collected from the online browser.
Earlier than speaking with the C2, although, ZenRAT makes certain that the host just isn’t in a restricted area (Belarus, Kyrgyzstan, Kazakhstan, Moldova, Russia, and Ukraine).
The malware additionally checks whether it is operating in a digital machine or a sandbox, an indication that researchers are analyzing it.
Nevertheless, the researchers additionally found some unusual info within the installer’s metadata, corresponding to claiming to be the {hardware} data app Speccy, from Piriform.
One other peculiarity is knowledge in regards to the signer of the installer. Though the digital certificates just isn’t legitimate, ZenRAT’s installer lists Tim Kosse, the developer of the open-source FileZilla FTP software program, because the signer.
Regardless of having features particular to an info stealer, Proofpoint has discovered proof suggesting that the malware is designed to be modular and its capabilities will be expanded; nevertheless, no different modules have been noticed within the wild.
The Bitwarden password supervisor has elevated in recognition recently as it’s thought to be a greater various to different merchandise in the marketplace. With a rising consumer base, the software program and its customers turn out to be a goal as cybercriminals take benefit
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