Incidents

Malware in Lenovo

Some of you might have seen the blogpost that our colleague Ryan Naraine has put at ZDNET about malware being distributed along with a pack of Lenovo Thinkpad drivers.

Here are some more details on that story. Working together with fellow researchers in Microsoft we discovered an URL that pointed to a file on IBM’s ftp site that looked like a false positive, so we sent them a ‘heads up’ message.

Careful analysis of the file, which was named ‘q3tsk04us13.exe’ (Lenovo Trust Key Software for WinXP) showed that the file in question did indeed contain a virus named Virus.Win32.Drowor.a. Luckily, the virus was broken and it didn’t work.

Naturally, we’ve notified IBM immediately – and IBM took the file offline.

We’d like to salute IBM’s prompt response and to thank our friends at MS for their initial analysis!

Malware in Lenovo

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Reports

Lazarus targets defense industry with ThreatNeedle

In mid-2020, we realized that Lazarus was launching attacks on the defense industry using the ThreatNeedle cluster, an advanced malware cluster of Manuscrypt (a.k.a. NukeSped). While investigating this activity, we were able to observe the complete life cycle of an attack, uncovering more technical details and links to the group’s other campaigns.

Sunburst backdoor – code overlaps with Kazuar

While looking at the Sunburst backdoor, we discovered several features that overlap with a previously identified backdoor known as Kazuar. Our observations shows that Kazuar was used together with Turla tools during multiple breaches in past years.

Lazarus covets COVID-19-related intelligence

As the COVID-19 crisis grinds on, some threat actors are trying to speed up vaccine development by any means available. We have found evidence that the Lazarus group is going after intelligence that could help these efforts by attacking entities related to COVID-19 research.

Sunburst: connecting the dots in the DNS requests

We matched private and public DNS data for the SUNBURST-malware root C2 domain with the CNAME records, to identify who was targeted for further exploitation. In total, we analyzed 1722 DNS records, leading to 1026 unique target name parts and 964 unique UIDs.

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