Malware Miscellany, June 2008

1. Greediest Trojan targeting banks
   As we move into summer, Trojan-Banker.Win32.Banker.ohq takes the crown in this category, by targeting customers of 56 banks.
2. Greediest Trojan targeting e-payment systems
   Trojan-Banker.Win32.Banker.olr wins this category in June, targeting three payment systems.
3. Greediest malicious program targeting payment cards
   Here, naturally enough, there’s another password stealing Trojan: Trojan PSW.Win32.Agent.apl has its sights sent on four payment card systems
4. Stealthiest malicious program
   Trojan-PSW.Win32.Delf.jj wins this month, as it’s packed with eight different packers.
5. Smallest malicious program
   Trojan.BAT.KillFiles.hx is rather larger than last month’s winner in this category but is still only 26 bytes in size. It’s capable of wiping the contents of C:.
6. Largest malicious program
   June’s winner, Trojan Banker.Win32.Bancos.mk, at 31MB in size, is by no means the largest program we’ve seen in this category.
7. Most malicious program
   Once again Agobot makes an appearance, with a modification of Backdoor.Win32.Agobot.gen victorious this month. Its payload holds no surprises: it deletes a wide range of security products both from memory and from disk.
8. Most common malicious program in email traffic
   This category doesn’t seem to change much from month to month: our old friend, Email-Worm.Win32.Netsky.q again takes the prize, having made up 34.15% of infected mail traffic in June.
9. Most common Trojan family
   3295 different modifications of Trojan-GameThief.Win32.OnlineGames were detected this month.
10. Most common virus/ worm family
    Worm.Win32.Autorun is back after an absence last month, with 152 new modifications: not a huge number for this category.

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.