Incidents

Web host for virus writers closed

Today we noticed that the infamous Internet resource host.sk, which has provided Web hosting services for a long time for the web sites of various virus writers’ groups and individual members of the underground is currently unavailable and not responding to requests.

We can only guess that this is a result of the recent events in the Czech Republic when members of 29A were questioned by the police. Benny and Ratter also had sites on this host.

We don’t have information that the host has been closed by the authorities and the contents seized.

Web host for virus writers closed

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Reports

The leap of a Cycldek-related threat actor

The investigation described in this article started with one such file which caught our attention due to the various improvements it brought to this well-known infection vector.

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.

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