File Investigation Report
URET463.EXE
Cloaked MalwarePC Cleanup in 3 Easy Steps
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Cloaked Malware
- Worm
File Behavior
URET463.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Executes a Process
- Copies files
- This process creates other processes on disk
- This Process Deletes Other Processes From Disk
- Registers a Dynamic Link Library File
- Injects code into other processes
- Enables an In Process Object/Server - Common with DLL Injections
- Drops known malicious software during execution
- Modifies fixed, removable or USB drives using autorun to execute or spread infection
- This Process is a file infector which modifies program files to include a copy of the infection
- Found on infected systems and resists interrogation by security products
- Creates a new Background Service on the machine
- Checks for the use of debuggers
URET463.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
- This program is often downloaded from the web
Country Of Origin
The filename URET463.EXE was first seen on Jan 13 2009 in the following geographical regions of the Prevx community:
- SPAIN on Jan 13 2009
- HONG KONG on Jan 22 2009
- VIET NAM on Feb 10 2009
- TAIWAN on Jun 23 2009
File Name Aliases
URET463.EXE can also use the following file names:
- HNKVAA2.EXE
- DPTYNI~1.BAT
- EF_BACKUP/BACKUP/C/6O0.BAT
- EF_BACKUP/BACKUP/D/6O0.BAT
- C__XC.EXE
- P8IHDW.EXE
- FF.EXE
- XC.EXE
- Y319S.EXE
- DF58.BAT
- DE43.BAT
- 6O0.BAT
Filesizes
The following file size has been seen:
- 101,761 bytes
- 104,456 bytes
- 125,342 bytes
- 102,409 bytes
- 106,217 bytes
File Type
The filename URET463.EXE refers to many versions of an executable program.
File Activity
One or more files with the name URET463.EXE creates, deletes, copies or moves the following files and folders:
- Deletes c:\windows\system32\drivers\cdaudio.sys
- Copies file$ü_CHAR(0x12)_\dllcache\cdaudio.sys to c:\windows\system32\drivers\cdaudio.sys
- Deletes c:\windows\system32\uret463.exe
- Deletes c:\windows\system32\lhgjyit0.dll
- Creates c:\windows\system32\lhgjyit0.dll
- Opens/modifes c:\autoexec.bat
- Deletes c:\windows\system32\c.exe
- Creates c:\windows\system32\c.exe
- Deletes c:\hnkvaa2.ex
- Copies filec:\windows\system32\uret463.exe to c:\hnkvaa2.ex
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\hnkvaa2.ex
- Copies filec:\windows\system32\uret463.exe to d:\hnkvaa2.ex
- Deletes d:\autorun.in
- Creates d:\autorun.in
- Deletes c:\docume~1\user\locals~1\temp\cc1.rar
- Deletes c:\docume~1\user\locals~1\temp\cc.ex
- Deletes c:\docume~1\user\locals~1\temp\ff1.rar
- Creates c:\docume~1\user\locals~1\temp\cc1.rar
- Deletes c:\docume~1\user\locals~1\temp\cc.exe
- Creates c:\docume~1\user\locals~1\temp\cc.exe
- Copies file4Æ_CHAR(0x03)_ PÆ_CHAR(0x03)_ tÆ_CHAR(0x03)_ ˜Æ_CHAR(0x03)_ ·ì_CHAR(0x01)_ èÆ_CHAR(0x03)_ _CHAR(0x08)_Ç_CHAR(0x03)_ _CHAR(0x1C)_Ç_CHAR(0x03)_ êÔ ou_CHAR(0x03)_ \dllcache\cdaudio.sys to c:\windows\system32\drivers\cdaudio.sys
- Deletes c:\windows\system32\e8main0.dll
- Creates c:\windows\system32\e8main0.dll
- Copies filec:\windows\notepad.exe to c:\windows\AhnRpta.exe
- Deletes c:\docume~1\user\locals~1\temp\am2.txt
- 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
- Deletes c:\windows\system32\huwesa.exe
- Copies filec:\docume~1\user\locals~1\temp\cc.exe to c:\windows\system32\huwesa.exe
- Deletes c:\windows\system32\843wee0.dll
- Creates c:\windows\system32\843wee0.dll
- Creates c:\docume~1\user\locals~1\temp\ff1.rar
- Deletes c:\docume~1\user\locals~1\temp\am.exe
- Creates c:\docume~1\user\locals~1\temp\am.exe
Website Activity
One or more files with the name URET463.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1110 Port:18
- Port 80 IP:221.1.222.109
- TCP:127.0.0.1:1130 Port:18
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