Malware reports

The December 2001 Virus Top Twenty

The latest monthly installment of the Kaspersky Virus Top 20 is here. To find out more details about each virus, simply click on the links below.

position virus percentage by occurrence
1 I-Worm.BadtransII
2 Trojan.PSW.Gip 2.5%
4 I-Worm.Sircam 1.4%
5 I-Worm.Magistr 1.1%
6 I-Worm.Aliz 0.9%
7 I-Worm.Nimda 0.6%
8 Trojan.PSW.Hooker 0.5%
9 I-Worm.Goner 0.3%
10 Macro.Word97.Thus
11 I-Worm.Petik
12 I-Worm.Zoher
13 Backdoor.Death
14 Macro.Word97.Furi
15 JS.Trojan.Seeker 0.1%
16 Macro.Word97.Jota 0.1%
17 I-Worm.HappyTime 0.1%
18 Gnutella-Worm.Mandragore 0.1%
19 Macro.Word97.Verlor
20 Macro.Word97.Shore 0.1%

The December 2001 Virus Top Twenty

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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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