dcsimg

Retrohunting APT37: North Korean APT used VBA self decode technique to inject RokRat

This post was authored by Hossein Jazi On December 7 2020 we identified a malicious document uploaded to Virus Total which was purporting to be a meeting request likely used to target the government of South Korea. The meeting date mentioned in the document was 23 Jan 2020, which aligns with the document compilation time of 27 Jan 2020, indicating that this attack took place almost a year … [Read more...]

New Flash Player zero-day used against Russian facility

For the past couple of years, Office documents have largely replaced exploit kits as the primary malware delivery vector, giving threat actors the choice between social engineering lures and exploits or a combination of both. While today’s malicious spam (malspam) heavily relies on macros and popular vulnerabilities (i.e. CVE-2017-11882), attackers can also resort to zero-days when trying to … [Read more...]

New macro-less technique to distribute malware

One of the most common and effective infection vectors, especially for businesses, is the use of malicious Office documents. This year alone, we witnessed two zero-days for both Flash and the VBScript engine, which were first actually embedded into Office documents before gaining wider adoption in web exploit kits. In addition to leveraging software vulnerabilities, attackers are regularly abusing … [Read more...]

Blocks for Flash and others coming to Office 365

If you’re a user of Microsoft Office products such as Word and Excel, you’re probably aware that they’ve been used as inroads for malware for a long, long time. But what about malware attacks without Macros? Sure. Macro malware for Macs? That, too. Malicious documents and spying tools? Danger, Will Robinson. We have some good news and some bad news. The good news is that monthly … [Read more...]