Yesterday’s Bagles

Yesterday was hot with two new Bagles let loose. The worms were mailed using spam methods in one of the largest mass mailings this year. I hope that the weekend will mean the outbreak will calm down.

The third Bagle we saw yesterday was almost identical to the first two, except for a mistake in the code: it can’t send copies over email. We put this variant in with Bagle.au, but may re-name it Bagle.av.

It is hard to see the difference between a mass-mailing and a real epidemic, so different AV companies gave the new Bagles different danger levels. We chose to stay at ‘medium risk’, for instance.

This incident confirms my idea that the Age of Worms is over. The new Bagles made news during the initial mass mailing, when they used zombie machines infected by Trojans.

The danger today is from botnets, not worms, and we are very concerned about this.

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.