The Virus Top Twenty

Kaspersky Labs presents the Virus Top 20 for the month of March, 2003.

The percentage shown represents the percentage of registered incidences.

4
I-Worm.Avron
3.30%

5
Macro.Word97.Thus
2.62%

6
I-Worm.Tanatos
1.38%

7
Macro.Word97.Marker
1.21%

8
Worm.Win32.Opasoft
1.13%

9
I-Worm.Hybris
1.04%

10
Win95.CIH
0.69%

11
Worm.Win32.Randon
0.58%

12
<!–!–>VBS.Redlof
0.57%

13
Backdoor.Death
0.51%

14
Win95.Spaces
0.51%

15
I-Worm.Roron
0.49%

16
Trojan.PSW.Gip
0.49%

17
<!–!–>Backdoor.NetDevil
0.48%

18
Win32.HLLP.Hantaner
0.45%

19
<!–!–>TrojanDropper.Win32.Delf
0.42%

20
<!–!–>TrojanDropper.Win32.Yabinder
0.41%

Other Malicious Programs*
25.33%
*not included in the Top 20

Kaspersky researchers have discovered new Mirage Kitten attacks using previously undocumented malware families: NodeRabbit in Node.js and PollCat in JavaScript.

Our experts discovered a new CoolClient backdoor variant with a kernel-mode rootkit driver that hides malicious processes, files, and network connections from security tools and threat analysts.

Kaspersky experts break down a new Armored Likho campaign that poses as a fundraising efforts and delivers a new Still Toolkit aimed at stealing Telegram data and eavesdropping on victims.

Kaspersky researchers reveal previously undocumented malware attributed to Mirage Kitten (UNC1549, Smoke Sandstorm, Nimbus Manticore): NightLedger backdoor, ArcBridge, and BridgeHead tunneling tools.