Prevx Research Division
UU.EXE
System Back DoorFree PC Cleanup from Webroot
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- System Back Door
- Cloaked Malware
File Behavior
UU.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Executes a Process
- Injects code into other processes
- This process creates other processes on disk
- This Process Deletes Other Processes From Disk
- Registers a Dynamic Link Library File
- This Process is a file infector which modifies program files to include a copy of the infection
- Copies files
- Drops known malicious software during execution
- Modifies fixed, removable or USB drives using autorun to execute or spread infection
- Creates a new Background Service on the machine
- Loads and Executes a System Driver File
- Found on infected systems and resists interrogation by security products
UU.EXE has been the subject of the following behavior:
- Copied to multiple locations on the system
- Deleted as a process from disk
- Executed as a Process
- Added as a Registry auto start to load Program on Boot up
- Created as a process on disk
- Executed from Temporary Folders
- Has code inserted into its Virtual Memory space by other programs
- This program is often downloaded from the web
- Registered as a Dynamic Link Library File
- Created as a new Background Service on the machine
Country Of Origin
The filename UU.EXE was first seen on Oct 15 2007 in the following geographical regions of the Webroot community:
- Spain on Oct 15 2007
- Japan on Aug 28 2008
- Canada on Aug 28 2008
- Germany on Aug 29 2008
- Vietnam on Jun 20 2009
- Macedonia on Oct 30 2010
- The United States on Sep 20 2011
- Turkey on May 6 2012
- Norway on May 6 2012
File Name Aliases
UU.EXE can also use the following file names:
- REVO.EXE
- O6MHFOG.COM
- BORTOS.EXE
- AOAKGK.EXE
- SSYQSW.EXE
- FSZDAO.EXE
- JAYZ.EXE
- FUCK.EXE
- DPTTWR~1.COM
- PARRBUS.TMP
- R1N4N4A9T3T3.EXE
- XVASSDF.EXE
- UREG.EXE
- AUTORUN.INF
- UU[1].EXE
- Q.CMD
- HA.CMD
- H001.EXE
- P001.EXE
Filesizes
The following file size has been seen:
- 106,656 bytes
- 93,595 bytes
- 32,768 bytes
- 92,509 bytes
- 217,088 bytes
- 1,391,715 bytes
- 114,379 bytes
File Type
The filename UU.EXE is used by multiple object types including executable programs,objects.
File Activity
One or more files with the name UU.EXE creates, deletes, copies or moves the following files and folders:
- Deletes c:\windows\system32\drivers\cdaudio.sys
- Copies file\dllcache\cdaudio.sys to c:\windows\system32\drivers\cdaudio.sys
- Deletes c:\windows\system32\xvassdf.exe
- Deletes c:\windows\system32\4tddfwq0.dll
- Creates c:\windows\system32\4tddfwq0.dll
- Creates c:\windows\system32\c.exe
- Deletes c:\windows\system32\c.exe
- Deletes c:\q.cm
- Copies filec:\windows\system32\xvassdf.exe to c:\q.cm
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\q.cm
- Copies filec:\windows\system32\xvassdf.exe to d:\q.cm
- Deletes d:\autorun.in
- Creates d:\autorun.in
- Deletes c:\docume~1\user\locals~1\temp\uu1.rar
- Deletes c:\docume~1\user\locals~1\temp\uu.ex
- Creates c:\docume~1\user\locals~1\temp\uu1.rar
- Creates c:\docume~1\user\locals~1\temp\uu.exe
- Deletes c:\docume~1\user\locals~1\temp\uu.exe
- Copies file˜Æ_CHAR(0x03)_ ÌÆ_CHAR(0x03)_ èÆ_CHAR(0x03)_ _CHAR(0x08)_Ç_CHAR(0x03)_ ·ì_CHAR(0x01)_ (Ç_CHAR(0x03)_ <Ç_CHAR(0x03)_ LÇ_CHAR(0x03)_ êÔ ou_CHAR(0x03)_ \dllcache\cdaudio.sys to c:\windows\system32\drivers\cdaudio.sys
- Copies filec:\docume~1\user\locals~1\temp\uu.exe to c:\windows\system32\xvassdf.exe
Website Activity
One or more files with the name UU.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1087 Port:17
- Port 80 IP:221.1.204.245
- sderfg .com / m / c .rar
- TCP:127.0.0.1:1100 Port:17
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