Home Malware Programs Dialers Mostrar

Mostrar

Posted: March 28, 2006

Mostrar is a dialer that connects a compromised PC to the Interent by dialing a high-cost phone number using a modem. The spyware also changes the Internet Explorer default home page to undesirable web site. Mostrar can get into the computer while visiting some insecure web resources. It runs on every Windows startup.

File System Modifications

  • The following files were created in the system:
    # File Name
    1 msa64chk.dll
    2 msapasrc.dll

Registry Modifications

  • The following newly produced Registry Values are:
    HKEY..\..\..\..{RegistryKeys}HKEY_CURRENT_USERPTPSA32.PTPSAWebHKEY_CURRENT_USERPTPSA32.PTPSAWeb.1HKEY_CURRENT_USERSoftwareMicrosoftInternetExplorerMainStartPage=[siteaddress]HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRundialer
  • The following CLSID's were detected:
    HKEY..\..\{CLSID Path}095C0DB4-FEA6-440E-8DFC-00FC53AC827D5BF0CE3E-61D2-4A7B-BAA3-0C4667A9563D4FC63700-2093-4AD2-8D37-3B3D86D9C94088C51E90-8E9C-4C96-8A45-574D88B63FAF
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