Percentage-based URL encoding plus Google domain trickery is helping malicious emails to evade filters. I also posted some of the information over on Twitter yesterday too. So there are a couple of ways of looking at the JAR file. Get the latest breaking news delivered daily to your inbox. But when one Java process would reset, the system would then try via the other Java process. Linux to get kernel ‘lockdown’ feature.

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Excel then gives the user three warnings that the file may be corrupt; should the user choose to proceed, the dropper will be executed. Most malspam contains a malicious URL these days, not file attachments. Dell SecureWorks Figure 5 shows a segment of the deobfuscated. The Threatpost editorial team does not participate in the writing or editing of Sponsored Content. The ad-blocking landscape is in line for some standardization, starting with the blocklists’ synthax.

We also see some other interesting bits in the code as well ie: DDE is a legitimate method for transferring data between applications — so for Excel, the process could update contents of a spreadsheet cell with information from an external application or adwimd with a specific extension.

When decrypted, the file reveals the folder name that will be created under the victim’s home directory Install Folderthe filename for the copy of AdWind RAT in that directory Jar Namethe registry information to add to the HKCU Run key Reg Key and Reg Valuethe server that will be contacted Domainand the port numbers to communicate with the remote attacker Port1 and Port Rt plants in Brazil, Mexico, and the US disrupted by malware infection.


Get the latest breaking news delivered daily to your inbox. AdWind copies the related Java Runtime files to a temporary directory within the victim’s home directory using the xcopy command:.

That file only had two lines in it.

New Linux kernel “lockdown” module to limit high-privileged users — even root — from tampering with some kernel functionality. Detailed information on the processing of personal data can be found in the privacy policy. Each contribution has a goal of bringing a unique voice to important cybersecurity topics.

Crafted emails contain malicious JAR files which, once executed, connect to the RAT’s c3.0 C2 server to download additional payloads and transfer stolen data. Additional groups of victims were found in Germany. The malicious files contain one of two adwinr, both of which leverage the DDE injection. The interesting thing that I noticed when testing this on my VM was the fact that addwind were two Java processes PIDs and that were talking on the loopback via port WhiteShadow downloader uses Microsoft SQL queries to deliver malicious payloads The downloader has an unusual way of executing next-stage payloads.

The malware has previously been connected to at leastattacks against businesses in finance, manufacturing, shipping, and the telecoms industry, among others.


But when one Java process would reset, the system would awind try via the other Java process. Infosec Insider content is written by a trusted community of Threatpost cybersecurity subject matter experts. The payload is a well-known multiplatform RAT, Adwind v3. The bitasdmin tooldeveloped by Microsoft as legitimate software, is a command-line tool for creating, downloading, or uploading jobs and adwinc their progress.

In the past, it has been seen used to run cryptomining campaigns or to target the aviation industry.

Spam campaign distributes AdWind RAT | Secureworks

The interesting bit for me was the Javascript since I had not seen anything like that before. Enjoyed what you read? The dropper file may also use a variety of extensions, including. Dell SecureWorks The config.

A newly-discovered spam campaign is spreading the Adwind 3. The Trojan is also able to tamper with system files and transfer content without user consent. It can also be built with a kit and can be configured to access any URL. The code will then create a Visual Basic script dat utilizes bitasdmin. I agree to accept information and occasional commercial offers from Threatpost partners.