Incidents

Koobface on the rise

In June, we saw an explosive rise in the number of Koobface modifications – the number of variants we detected jumped from 324 at the end of May to nearly 1000 by the end of June. And this weekend brought another flood, bringing us up to 1049 at the time of writing.

As we’ve said before, Koobface spreads via major social networking sites like Facebook and MySpace. It’s now spreading via Twitter as well.

Normally the increase in the number of malicious programs slows a bit over the summer with lots of people (virus writers, cybercriminals etc.) taking a bit of time off. But in the case of Koobface, the opposite has happened. This is probably because cybercriminals have realized that spreading malware via social networking sites is very effective.

June 2009 is an important milestone in the history of social network malware; the activity we’ve seen this month far exceeds anything we’ve previous seen. With everyone who’s anyone now having a Facebook page, Twitter account or similar, the pool of potential victims is growing day by day – just take a look at the Alexa stats for Facebook. So naturally, cybercriminals are going to be targeting these sites more and more often.

Koobface on the rise

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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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