This malware is one of the "Printer Virus" that prints several lines of characters when executed on infected systems.
To get a one-glance comprehensive view of the behavior of this Adware, refer to the Threat Diagram shown below.

This adware 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 the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
Arrival Details
This adware 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 adware drops the following files:
- {malware path}\user_config.cyp
- {malware path}\user_profil.cyp
It creates the following folders:
- {malware path}\Download
- {malware path}\Software
Other System Modifications
This adware adds the following registry keys:
HKEY_CURRENT_USER\Software\EoRezo
HKEY_LOCAL_MACHINE\SOFTWARE\EoRezo
It adds the following registry entries:
HKEY_CURRENT_USER\Software\EoRezo\
SoftwareUpdate
MainDir = "{malware path}"
HKEY_CURRENT_USER\Software\EoRezo\
SoftwareUpdate
Version = "1.5.0.0"
HKEY_CURRENT_USER\Software\EoRezo\
SoftwareUpdate
SoftwareDir = "{malware path}\Software"
HKEY_CURRENT_USER\Software\EoRezo\
SoftwareUpdate
DownloadDir = "{malware path}\Download"
HKEY_LOCAL_MACHINE\SOFTWARE\EoRezo
HostGUID = "{random GUID}"
Download Routine
This adware accesses the following websites to download files:
- http://{BLOCKED}es.{BLOCKED}zo.com/clib/suf.exe?{random string}
It saves the files it downloads using the following names:
- {malware path}\Download\sufr\4.0.0.{random number}\suf.exe
- {malware path}\Software\sufr\4.0.0.{random number}\suf.exe
live casino online detects the dowloaded file as:
It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
Adware Routine
This adware connects to the following URL(s) to display ads on the affected system:
- http://{BLOCKED}of.{BLOCKED}ezo.com/cgi-bin/create_profile.cgi
- http://{BLOCKED}g.{BLOCKED}zo.com/cgi-bin/trace.cgi
- http://{BLOCKED}of.{BLOCKED}zo.com/cgi-bin/get_update.cgi
- http://{BLOCKED}s.{BLOCKED}zo.com/cgi-bin/advert/getads?did=43
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
Close all opened browser windows
Step 3
Delete this registry key
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Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software
- In HKEY_LOCAL_MACHINE\SOFTWARE
To delete registry keys this malware/grayware created:
- Open Registry Editor. To do this:
» For Windows 2000, Windows XP, and Windows Server 2003 users, click Start>Run, type regedit in the text box provided, and then press Enter.
» For Windows Vista, Windows 7, and Windows Server 2008 users, click the Start button, type regedit in the Search input field then press Enter.
» For Windows 8, Windows 8.1, and Windows Server 2012 users, right-click on the lower left corner of the screen, click Run, type regedit in the text box provided, and then press Enter. - In the left panel of the Registry Editor window, double-click the following:
HKEY_CURRENT_USER>Software - Still in the left panel, locate and delete the key:
EoRezo - In the left panel of the Registry Editor window, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE - Still in the left panel, locate and delete the key:
EoRezo - Close Registry Editor.
Step 4
Search and delete these components
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There may be some components that are hidden. Please make sure you check the
Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
- {malware path}\user_config.cyp
- {malware path}\user_profil.cyp
To manually delete a malware/grayware file from an affected system:
• For Windows 2000, Windows XP, and Windows Server 2003:
- Right-click Start then click Search....
- In the File name* input box, type the following:
- {malware path}\user_config.cyp
- {malware path}\user_profil.cyp
- In the Look In drop-down list, select My Computer then press Enter.
- Once located, select the file then press SHIFT+DELETE to delete it.
*Note: The file name input box title varies depending on the Windows version (e.g. Search for files or folders named or All or part of the file name.).
• For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:
- Open a Windows Explorer window.
- For Windows Vista, 7, and Server 2008 users, click Start>Computer.
- For Windows 8, 8.1, and Server 2012 users, right-click on the lower left corner of the screen,then click File Explorer.
- In the Search Computer/This PC input box, type:
- {malware path}\user_config.cyp
- {malware path}\user_profil.cyp
- Once located, select the file then press SHIFT+DELETE to delete it.
*Note: Read the if these steps do not work on Windows 7.
Step 5
Search and delete these folders
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Please make sure you check the
Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
- {malware path}\Download
- {malware path}\Software
To delete malware/grayware/spyware folders:
For Windows 2000, Windows XP, and Windows Server 2003:
- Right-click Start then click Search... or Find..., depending on the version of Windows you are running.
- In the File name* input box, type:
- {malware path}\Download
- {malware path}\Software
- In the Look In drop-down list, select My Computer, then press Enter.
- Once located, select the folder then press SHIFT+DELETE to permanently delete the folder.
- Repeat steps 2 to 4 for the remaining folders:
- {malware path}\Download
- {malware path}\Software
*Note: The file name input box title varies depending on the Windows version (e.g. Search for files or folders named or All or part of the file name.).
For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:
- Open a Windows Explorer window.
- For Windows Vista, 7, and Server 2008 users, click Start>Computer.
- For Windows 8, 8.1, and Server 2012 users, right-click on the lower left corner of the screen, then click File Explorer.
- In the Search Computer/This PC input box, type:
- {malware path}\Download
- {malware path}\Software
- Once located, select the file then press SHIFT+DELETE to permanently delete the folder.
- Repeat steps 2-3 for the remaining folders:
- {malware path}\Download
- {malware path}\Software
*Note: Read the if these steps do not work on Windows 7.
Step 6
Scan your computer with your live casino online product to delete files detected as ADW_EOREZO. If the detected files have already been cleaned, deleted, or quarantined by your live casino online product, no further step is required. You may opt to simply delete the quarantined files. Please check this for more information.