2nd Thought


· Overview ·
· Origins ·
· Distribution ·
· Operation ·
· Risks ·
· Detection and Removal ·
· Research ·



Overview

Alias:

2ndthought Adware, Adware.SecondThought [Symantec], Adware/PortalScan [Panda], BKDR_RULEDOR.E, Second Thought, SecondThought, Spyware/BetterInet [Panda], Spyware/ClearSearch [Panda], Trojan.Win32.SecondThought [Kaspersky], Trojan.Win32.SecondThought.a [Kaspersky], Trojan.Win32.SecondThought.c [VirusLibrary], Win32.BettInet.E [Computer Associates], Win32/SecondThought.G [NOD32]

Category:

Adware: Software that displays popup/popunder ads when the primary user interface is not visible or which do not appear to be assocaited with the product.

Browser Helper Object: (BHO). A component that Internet Explorer will load whenever it starts, shares IE's memory context, can perform any action on the available windows and modules. A BHO can detect events, create windows to display additional information on a viewed page, monitor messages and actions. Microsoft calls it "a spy we send to infiltrate the browser's land." BHOs are not stopped by personal firewalls, because they are seen by the firewall as your browser itself. Some exploits of this technology search all pages you view in IE and replace banner advertisements with other ads. Some monitor and report on your actions. Some change your home page.

Hijacker: Any software that resets your browser's settings to point to other sites. Hijacks may reroute your info and address requests through an unseen site, capturing that info. In such hijacks, your browser may behave normally, but be slower.

Trojan: Any program with a hidden intent. Trojans are one of the leading causes of breaking into machines. If you pull down a program from a chat room, new group, or even from unsolicited e-mail, then the program is likely trojaned with some subversive purpose. The word Trojan can be used as a verb: To trojan a program is to add subversive functionality to an existing program. For example, a trojaned login program might be programmed to accept a certain password for any user's account that the hacker can use to log back into the system at any time. Rootkits often contain a suite of such trojaned programs.

Variants:

  • Trojan.Win32.SecondThought.a
  • Trojan.Win32.SecondThought.b
  • Trojan.Win32.SecondThought.c
  • Similar Pests:

    Adware · Browser Helper Object · Hijacker · Trojan

    Origins

    Group:

    CPM Media, Ltd.

    By This Group:

    Second Thought ·

    Mailing Address:

    Don Lativalle 3597 boul St-Jean Dollard des Ormeaux, H9X2B5 Canada or 2nd Thought, 143 Beattie Street, Balmain, Sydney NSW Australia.

    Phone:

    +1.5148827839 (Canada) or (02) 9818-6565 (Australia)

    EMail:

    Don Lativalle dlativalle@canada.com or support@2nd-thought.com or thinkers@2ndthought.com

    URL:

    http://www.2nd-thought.com

    Programming Language:

    Visual C++ and compressed using UPX.

    Date of Origin:

    Variants from July, 2003 to April, 2005

    Place of Origin:

    Canada

    Distribution

    Prevalence:

  • 2nd Thought: 0.2%
  • Trojan.Win32.SecondThought.a: < 0.00005%
  • Trojan.Win32.SecondThought.c: < 0.00005%
  • More Info

    Clot Factor:

  • 2nd Thought: 5
  • The "Clot Factor" is a measure of how much a pest "gums up" a machine by adding registry entries, files, and directories. As more objects are placed in a machine, manual removal becomes more difficult and more error-prone.

    Growth:

  • 2nd Thought: Insufficient data to report growth
  • Operation

    Platform:

    Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

    Advertising:

    Yes. "In order for us to keep this software free we will open advertisements while you surf the web that we feel will broaden your surfing experience." -- http://www.2nd-thought.com/terms.html

    Storage Required:

  • 2nd Thought: at least 3357 KB
  • Trojan.Win32.SecondThought.a: at least 29 KB
  • Trojan.Win32.SecondThought.b: at least 45 KB
  • Trojan.Win32.SecondThought.c: at least 217 KB
  • Browser Performance:

    Likely to slow performance of Internet Explorer.

    Risks

    Privacy Issues:

    Yes. "Information in regards to your browsing will be sent to our servers, such as how long you surf for, and your surfing habits." -- http://www.2nd-thought.com/terms.html

    Privacy Policy:

    None found on web site.

    Security Issues:

    includes downloader, that will silently install additional software. "To insure you always have the latest version and for your convenience this software will automatically update itself from time to time once installed. Also during these updates, other partners software can be installed which will show you ads or enhance your searching experience." -- http://www.2nd-thought.com/terms.html

    Detection and Removal

    Automatic Removal:

    PestPatrol detects this.

    PestPatrol removes this.



    Manual Removal:

    Use "Add/Remove Programs" in the Windows® Control Panel.
    Stop Running Processes:

    Kill these running processes with Task Manager:

    Remove AutoRun Reference:

    Go To the key HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run.
    If you find the value HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\run\adstartup, delete it and reboot the machine immediately.
    If you find the value HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\run\bokja, delete it and reboot the machine immediately.
    If you find the value HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\run\sqinstaller, delete it and reboot the machine immediately.
    If you find the value HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\run\stcloader, delete it and reboot the machine immediately.



    Unregister DLLs:

    Unregister these DLLs with Regsvr32, then reboot:

    Clean Registry:

    Remove these registry items (if present) with RegEdit:

    Remove Files:

    Remove these files (if present) with Windows Explorer:

    Remove Directories:

    Remove these directories (if present) with Windows Explorer:

    Restore Settings:

    After following the instructions above, you will still need to restore your original settings and prevent this from happening again. Here''s how.

    Research

    File Analyses:

    More Info:

  • Symantec info
  • Virus Library info
  • AllTheWeb, AltaVista, AOL Search, Ask Jeeves, Google, HotBot, Lycos, LookSmart, MSN, Yahoo!
  • Research By:

  • PestPatrol's Pest Research Center
  • Last Revised:

    April 25, 2005