How to Detect and Remove CoolWWWSearch.SmartKiller (v1/v2) MiniRemoval
Overview
CoolWWWSearch.SmartKiller (aka CoolWebSearch variants) is an older browser-hijack/adware family. The MiniRemoval utility referenced (v1/v2) was a small removal tool from the early 2000s designed to stop a SmartKiller variant that closed browsers and some antispyware tools.
Detection (Windows)
- Symptoms
- Browsers close when visiting anti-spyware sites.
- Anti-spyware tools (e.g., Spybot-S&D) close shortly after launch.
- Unexpected homepage/search engine changes, pop-ups, or redirects.
- Quick checks
- Task Manager: look for suspicious processes with random or similar names.
- Startup entries: check Task Manager → Startup (Windows 8/10/11) or msconfig on older Windows.
- Browser: check installed extensions/add-ons and reset browser settings.
- File/registry indicators (legacy)
- Look for files or folders created near Program Files or Temp with names referencing CoolWWWSearch/CWS/CoolWebSearch.
- Inspect common registry autostart keys:
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- Only edit registry if you know what you’re doing.
Removal — safe, step-by-step
Note: assume Windows XP–11; prefer modern anti-malware for current systems.
- Disconnect from Internet (limits downloads/remote control).
- Boot to Safe Mode (optional but useful): reboot → press F8 (older Windows) or hold Shift while selecting Restart → Troubleshoot → Advanced → Startup Settings → Safe Mode.
- Run reputable scanners
- Install and run full scans with up-to-date tools (recommended):
- Malwarebytes (Malwarebytes AdwCleaner for adware)
- Microsoft Defender (built-in)
- Adlice Protect / RogueKiller or Dr.Web CureIt (on-demand)
- Quarantine/delete any detections and reboot.
- Install and run full scans with up-to-date tools (recommended):
- Use specialized removers (legacy if needed)
- If dealing with historical CoolWebSearch variants on older systems, older utilities like CWS.SmartKiller or CWShredder were used—only obtain from reputable archives (MajorGeeks, Safer-Networking) and scan the download before running.
- Prefer modern scanners first; avoid running untrusted executables.
- Manual cleanup (if automated tools fail)
- Remove suspicious startup entries (Task Manager → Startup or Autoruns by Sysinternals).
- Delete suspicious files/folders (Program Files, Temp).
- Reset browsers: remove unknown extensions, reset homepage/search, clear cache.
- Check hosts file (C:\Windows\System32\drivers\etc\hosts) for malicious redirects.
- Restore system settings
- Use System Restore to a point before infection (if available).
- Re-run full scans after cleanup to confirm.
- Post-removal
- Change passwords used after infection (from a clean device).
- Update Windows and all software.
- Enable real-time protection (Windows Defender or third-party AV).
- Backup important data.
When to seek help
- If infections persist after scans and manual steps, consider professional support or a clean OS reinstall (backup data first).
Useful links (historical)
- MajorGeeks page for CoolWWWSearch.SmartKiller MiniRemoval (archived downloads).
- Safer-Networking (Spybot) references and removal resources.
If you want, I can produce a concise step-by-step checklist tailored to your Windows version (specify XP/7/10/11).
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