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Malware Miscellany, April 2008

Yury
Kaspersky Lab Expert
Posted May 07, 13:02  GMT
Tags: Malware Miscellany
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  1. Greediest Trojan targeting banks
    Trojan-Spy.Win32.Banker.lax, which targets customers of 104 banks, wins this category in April
  2. Greediest Trojan targeting payment systems
    Another variant of Banker, in this case Trojan-Spy.Win32.Banker.krv takes the palm this month. It targets the users of three e-payment systems.
  3. Greediest malicious program targeting payment cards
    April's winner in this category is Trojan-Spy.Win32.Bancos.blc, which has its sights set on three payment card systems at once.
  4. Stealthiest malicious program
    This month, one variant of Backdoor.Win32.Hupigon.bqsi wins out, being packed with seven different packers.
  5. Smallest malicious program
    The tiny Trojan.BAT.MouseDisable.b, with a mere 22 bytes, still manages once launched to block the mouse.
  6. Largest malicious program
    April's winner is Trojan-Dropper.Win32.Agent.nrh – at 46MB in size, it's not that large compared to previous victors in this category
  7. Most malicious program
    There's a new entrant in this category – a modification of Backdoor.Win32.Agobot.gen replaces the Haradong family which has ruled for the last two months. Malicious programs from this family search for and destroy antivirus solutions in all possible locations – in RAM, the system registry and on disk.
  8. Most common malicious program in email traffic
    In a couple of months we may have to reconsider the value of this category, as it's been almost exclusively occupied by Email-Worm.Win32.Netsky.q. The worm isn't conceding ground to any other malicious program, and during the last month it's even increased its share of infected mail traffic to 40.58%.
  9. Most common Trojan family
    Backdoor.Win32.Hupigon remains the most 'fertile' malicious program, giving birth to 3151 modifications in the course of a single month – only slightly fewer than last month.
  10. Most common virus/ worm family
    Worm.Win32.AutoRun heads this category in April, with 230 new modifications.


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