BKDR_CARBERP.MEO
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Backdoor
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
This backdoor is a new variant of the malware family CARBERP. It downloads and installs new plug-ins from its remote server thus compromising the security of the infected systems
To get a one-glance comprehensive view of the behavior of this Backdoor, refer to the Threat Diagram shown below.
![](https://documents.trendmicro.com/images/BKDR_CARBERP_MEO.jpg)
For the related story, you may read the blog post, CARBERP Banking Malware Makes a Comeback.
This backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It executes commands from a remote malicious user, effectively compromising the affected system. It connects to a website to send and receive information.
It logs a user's keystrokes to steal information.
TECHNICAL DETAILS
211,968 bytes
EXE
UPX
Yes
30 Jan 2013
Compromises system security, Logs keystrokes, Downloads files, Steals information
Arrival Details
This backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This backdoor drops the following copies of itself into the affected system:
- {All User's Profile}\Start Menu\Programs\Startup\{random file name}.exe
Backdoor Routine
This backdoor executes the following commands from a remote malicious user:
- Download, install and update plug-ins
- Remote Desktop Connection
- Capture Screenshots
- Monitor Browsers by form grabbing
- Search words in document files
- Get FTP passwords
- Send and delete cookies
- Download and execute arbitrary files
- Send files to server
- Reboot
It connects to the following websites to send and receive information:
- {BLOCKED}anec-ccp.cc
- {BLOCKED}toh.info
- {BLOCKED}toh.org
Information Theft
This backdoor gathers the following data:
- MAC Address
- Gateway
- IP Mask
- IP Address
- Adapter Address
- Adapter Description
- AdapterName
- SecondaryWinsServer
- PrimaryWinsServer
- Lease Obtained
- DHCP Server
- DHCP Enabled
- Bot ID
- Account Name
- Account Password
- Account Balance
- Account Statements
It logs a user's keystrokes to steal information.
NOTES:
This backdoor downloads the following plug-ins from its command-and-control (C&C) server:
- passw.plug - used to get passwords stored in installed softwares
- docfind.plug - search keywords in documents
- vnc.plug - used for remote access
- vncdll.plug - used for remote access
- rdp.plug - used for remote desktop connection
- ifobs.plug - used to monitor IFOBS
- cyberplat.plug - used to monitor CyberPlat
- rtlext.plug
- addtrust.plug
It monitors the following browsers:
- Internet Explorer
- Firefox
- Chrome
It uses the following strings for monitoring:
- BBSCBank
- ibank2.ru
- *://online.payment.ru/juricvalrur/JuridicalClient.html
- *money.yandex*
- *iFOBS*
- https://*/ibc
- *ibank.alfabank.ru*
- *connect.raiffeisen.ru/rmc*
- *avangard.ru*
- *ibank.alfabank.ru*
- *online.sbank.ru*
SOLUTION
9.300
9.690.01
30 Jan 2013
9.691.00
30 Jan 2013
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Scan your computer with your Trend Micro product and note files detected as BKDR_CARBERP.MEO
Step 3
Restart in Safe Mode
Step 4
Search and delete the file detected as BKDR_CARBERP.MEO
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as BKDR_CARBERP.MEO. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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