Incidents

Do you like photos?

This week we’ve seen a couple of IM-Worms peaking above the radar to an extent you can probably call epidemic levels.

Two of these were MSN-Worms. Each worm sends a link:

Each of the links lead to a different Trojan-downloader. The downloaders download a variety of adware and adware-related Trojans.

Moreover, IM-Worm.Win32.Licat.c is also downloaded, which in turn launches a new mass mailing of the original message. Nothing unusual, right?

Wrong! Both worms spread using links to .PIF files. But some of you might remember that Microsoft blocked messages containing “.pif”?

Yes they have, but… the MS block is case sensitive!

So the criminals used capital letters, “.PIF” and the network filters let the message flow right through. Other variations like .Pif, .pIf, and so on also work.

We have notified Microsoft of this and hope they take the necessary actions. In the meantime, users and admins should beware.

The funpic.de page has been taken down during the night and the uglyphotos link is dead and blocked by MSN. But there’s no doubt there will be new ones to replace it. Especially with the VML vulnerability still un-patched.

Do you like photos?

Your email address will not be published. Required fields are marked *

 

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.

Subscribe to our weekly e-mails

The hottest research right in your inbox