New virus intercepted

[Denis Beauchemin]

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Denis Beauchemin wrote:

> Denis Beauchemin wrote:
>
>> Hello All,
>>
>> Last night we received many hundreds EXE files infected by 
>> Backdoor.Win32.Dumador.dk, according to Kaspersky.  No other virus 
>> scanner I have detected anything suspicious: McAfee, Bitdefender and 
>> ClamAV all said there was nothing wrong in the files.
>>
>> All files seem to be the same length (26112 bytes) and came from many 
>> different IPs.  They all have strange names (looks like random 
>> characters) ending in .exe.
>>
>> I'm glad I don't let EXE/BAT/PIF/... files through!
>>
>> Denis
>>
> Overall we blocked 512 EXE on one of our external servers yesterday 
> and no more than 3 came from the same IP.  On the other external 
> server, we blocked 525 EXE and no more than 4 came from the same IP...
>
> Funny thing: we received them from midnight to 1:35 and then nothing 
> until 17:36 (5:36PM).  It stopped at about 19:36 (7:36PM) to not be 
> seen again...
>
> Still nothing detected by McAfee, Bitdefender or ClamAV...
>

The new DAT file (4562) detects them as BackDoor-CCT trojan.

Denis

-- 
   _
  °v°   Denis Beauchemin, analyste
 /(_)\  Université de Sherbrooke, S.T.I.
  ^ ^   T: 819.821.8000x2252 F: 819.821.8045

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