File Investigation Report
TAVO.EXE
Cloaked MalwarePC Cleanup in 3 Easy Steps
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Associated Malware Groups
The filename is associated with the malware groups:
- Cloaked Malware
- Malicious Software
File Behavior
TAVO.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- The Process is polymorphic and can change its structure
- Adds a Registry Key (RUN) to auto start Programs on system start up
- This process creates other processes on disk
- This Process Deletes Other Processes From Disk
- Writes to another Process's Virtual Memory (Process Hijacking)
- Terminates Processes
- Executes a Process
- Registers a Dynamic Link Library File
- Injects code into other processes
- This Process is a file infector which modifies program files to include a copy of the infection
- Copies files
- Loads and Executes a System Driver File
- Creates a new Background Service on the machine
TAVO.EXE has been the subject of the following behavior:
- Added as a Registry auto start to load Program on Boot up
- Created as a process on disk
- Executed as a Process
- Terminated as a Process
- Copied to multiple locations on the system
- Deleted as a process from disk
- Registered as a Dynamic Link Library File
- Executed from Temporary Folders
- Has code inserted into its Virtual Memory space by other programs
- This program is often downloaded from the web
Country Of Origin
The filename TAVO.EXE was first seen on Jan 27 2008 in the following geographical regions of the Prevx community:
- SPAIN on Jan 27 2008
- The UNITED KINGDOM on Mar 15 2008
- The EUROPEAN UNION on Apr 17 2008
- HONG KONG on Apr 17 2008
File Name Aliases
TAVO.EXE can also use the following file names:
- CC[1].EXE
- 44763513.EXE
- 26700888.EXE
- 41233567.EXE
- 68557852.EXE
- CC.EXE
- 49272567.SVD
- TT.EXE
- 50363632.SVD
- 87892842.DAT
- 61991393.EXE
- 60339005.EXE
- 83428636.EXE
- 95161616.TXT
Filesizes
The following file size has been seen:
- 112,572 bytes
- 109,399 bytes
- 106,810 bytes
- 107,801 bytes
- 106,611 bytes
- 113,856 bytes
- 124,291 bytes
File Type
The filename TAVO.EXE is used by multiple object types including executable programs,objects.
File Activity
One or more files with the name TAVO.EXE creates, deletes, copies or moves the following files and folders:
- Creates c:\docume~1\user\locals~1\temp\wwyasm9z.dll
- Deletes c:\docume~1\user\locals~1\temp\2q6s4ik5.sy
- Creates c:\docume~1\user\locals~1\temp\2q6s4ik5.sys
- Deletes c:\windows\system32\tavo.exe
- Deletes c:\windows\system32\tavo0.dll
- Creates c:\windows\system32\tavo0.dll
- Creates c:\docume~1\user\locals~1\temp\93b4_appcompat.txt
- Opens/modifes c:\autoexec.bat
- Creates c:\documents and settings\all users\application data\microsoft\dr watson\user.dmp
- Deletes c:\documents and settings\all users\application data\microsoft\dr watson\user.dmp
Website Activity
One or more files with the name TAVO.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1096 Port:17
- Port 80 IP:61.162.230.89
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