Malware

The current threat analysis by G DATA CyberDefense shows that the number of attacks prevented in March 2020 has increased significantly. The cyber defence company averted almost a third more attacks than in February.

Ransomware is still evolving. Evidence for this can be seen every day. Our analysts have taken a look at Buran and Zeppelin, a particularly devastating exhibit of this evolution.

This Java based malware installs RDPWrap, steals credentials, logs keystrokes and remote controls Windows systems. It may soon be capable to infect without Java installed.

There is a generic and easy way to unpack Java malware that is not well-known yet. For demonstration I use a recent JAR malware sample that jumps on the COVID-19 bandwagon.

There is a simple trick to see the bitness of a Portable Executable file immediately by looking into a hex editor. But why does it even work? And is it reliable?

G DATA discovered an email spam campaign in Germany that delivers NetWire RAT via PowerShell in Excel documents. The emails mimick the German courier, parcel and express mail service DHL.

Feature-rich remote access malware Pekraut emerges. The rodent seems to be of German origin and is ready to be released. We analyzed the malware in-depth.

Cyber criminals’ targets have not changed in the past year. They are after passwords and confidential data and try to encrypt data and systems. The current Malware Top 10 showing the ten most active malware families indicate how active the attackers have been in 2019.

Public source code repository at Bitbucket.org was as abused to host CryptBot, Buer loader with NuclearBot and Cryptominer.

This new remote access malware creates a second desktop that is invisible to the system's user. The threat actor can surf the Internet using the infected machine.