Re: "Yay" Malware

["Flagg, Martin D." <FlaggMD () HIRAM EDU>]

Any suggestions for IDS and/or Layer 7 firewall detection?  Does usb.exe
get downloaded?

Marty
Hiram College 

-----Original Message-----
From: Parker, Ron [mailto:Ron.Parker () BRAZOSPORT EDU] 
Sent: Friday, January 12, 2007 9:16 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] "Yay" Malware

In cases where we've tried to repair the damage, without having a
removal tool available, I've seen some of my staff spend multiple days
trying to clean things up. As you know, then you never know for sure
that you've gotten it. I would guestimate that it has cost us several
hundred dollars in staff time per computer to try to clean up something.
We would only do that in very rare cases any more. These days, we
re-image with gusto. 

--
Ron Parker, Director of Information Technology, Brazosport College

 

> -----Original Message-----
> From: RL Vaughn [mailto:Randy_Vaughn () BAYLOR EDU]
> Sent: Friday, January 12, 2007 7:49 AM
> To: SECURITY () LISTSERV EDUCAUSE EDU
> Subject: Re: [SECURITY] "Yay" Malware
>
> Indeed the file, C:\WINDOWS\SYSTEM32\usb.exe, has been pinned as the 
> culprit.
> Reports are it overwrites binaries critical to IM, tray applications, 
> and, apparently, the binaries of processes active at the time of 
> infection including some AV.  The binary is UPX packed.  The infection

> vector has not yet been determined to my knowledge.
>
> Scott's reinstall or reimage option suggestion seems realistic rather 
> than paranoid.  On that point, and other previous postings, does 
> anyone have a ballpark guesstimate of how much it costs to repair a 
> single machine after such an infection?
>
> Scott Fendley wrote:
> > Heya Tim et al,
> >
> > Thankfully we have not seen it on our campus as of yet.  
> However, I do
> > know from communication with the Internet Storm Center that
> a sample
> > has been sent to all of the major antivirus venders earlier in the 
> > day.  I would expect that definitions will be out for the initial 
> > variation of this malware soon.
> >
> > After determining the attack vector/infection technique,  I would 
> > typically reinstall or reimage the computer.  I may be a little 
> > paranoid, but I really don't like not knowing positively what the 
> > state of security really is after a compromise of this nature.
> >
> >
> > It would be great if any determination could be made as to what the 
> > infection vector might have been.  Email, IM, website
> download?   From
> > the reports I have seen it seems the file that appears to
> be part of
> > the 1st stage infection is C:\WINDOWS\SYSTEM32\usb.exe.
> >
> > Hopefully I will have more details in the morning that I can share.
> >
> > Scott
> >
> > At 07:25 PM 1/11/2007, Tim Lane wrote:
> > > > Hi All,
> > > >
> > > > has anyone seen (for want of a better term) the Yay
> Malware.  We are
> > > > seeing a small window with the word "yay" in it appear on the 
> > > > desktop with a lot of outgoing traffic.  A search on Google cites 
> > > > quite a few people seeing this in the last 24 hours but
> no resolution.
> > > > We have tried to remove it with:
> > > >
> > > > Symantec AV
> > > > Adaware
> > > > Spybot S&D
> > > > Defender
> > > > XoftSpySE
> > > > MSRT
> > > >
> > > > Seems like it may be very new and the AV vendors have not
> caught on
> > > > yet....
> > > >
> > > > If anyone has seen it and mitigated it I would be
> interested to hear.
> > > > Thanks,
> > > >
> > > > Tim
> > >
> > >
> > > Tim Lane
> > > Information Security Program Manager
> > >
> > > Information Technology and Telecommunication Services
> Southern Cross
> > > University PO Box 157 Lismore NSW 2480
> > >
> > > (02 6620 3290   7             02 6620 3033   - tlane () scu edu au
> > > 8 <http://www.scu.edu.au>http://www.scu.edu.au