Adzmi.com is a browser hijacker that forcibly redirects users to unwanted advertising domains, alters search settings without permission, and generates revenue for its operators through pay-per-click schemes. This potentially unwanted program (PUP) typically infiltrates systems bundled with free software downloads and immediately modifies browser configurations to ensure persistent exposure to sponsored content. While not technically a virus, Adzmi.com compromises your browsing experience, exposes you to potentially malicious advertisements, and creates privacy risks by tracking your online activity.
Users infected with Adzmi.com report sudden homepage changes, unexpected search engine replacements, and constant redirects to advertising pages that interrupt normal web browsing. The hijacker proves difficult to remove through standard browser settings alone because it employs multiple persistence mechanisms including browser extensions, scheduled tasks, and registry modifications that reapply changes even after manual removal attempts.
Threat Profile
| Attribute | Details |
|---|---|
| Threat Type | Browser Hijacker / Potentially Unwanted Program (PUP) |
| Family | Adware/Redirect family |
| Common Aliases | Adzmi, Adzmi.com Redirect, Adzmi Hijacker |
| Affected Platforms | Windows 7/8/10/11; affects Chrome, Firefox, Edge, Internet Explorer |
| Primary Distribution | Software bundling, fake update prompts, deceptive advertising |
| Persistence Mechanisms | Browser extensions, registry modifications, scheduled tasks, shortcut tampering |
| Primary Capabilities | Search redirection, homepage hijacking, new tab replacement, ad injection, tracking cookie installation |
| Data Collection | Search queries, browsing history, clicked links, IP address, geolocation data |
| Network Behavior | Persistent connections to advertising networks; DNS requests to affiliated domains |
| Common Artifacts | Modified browser shortcuts with appended URLs; unauthorized extensions; new registry Run keys |
| Payload Risk | Medium — may redirect to sites hosting additional malware or phishing pages |
| Removal Difficulty | Moderate — requires multi-step process across browsers and system locations |
How It Spreads
Adzmi.com spreads primarily through deceptive software bundling practices where the hijacker components are packaged with legitimate free applications. Users installing download managers, PDF converters, media players, or other utilities from third-party download sites frequently encounter installation wizards that pre-select additional "offers" in fine print or on screens labeled as "Recommended" or "Express" installation. The hijacker installs alongside the desired program unless users specifically choose Custom installation and manually deselect each bundled component.
Beyond bundled software, Adzmi.com also spreads through fake system update notifications displayed on compromised websites or generated by existing adware. These fraudulent alerts claim your Flash Player, Java, or browser requires an urgent security update, then deliver the hijacker when users click the download button. Some variants also propagate through malicious browser extensions promoted in forums, social media posts, or paid search results that promise features like video downloaders or shopping assistants but actually install the redirect mechanism.
Common distribution vectors include:
- Bundled freeware installers — especially from sites like Softonic, Download.com, or CNET that monetize through bundled offers
- Fake update prompts — misleading alerts on streaming or file-sharing sites claiming software is out of date
- Malicious browser extensions — promoted as useful tools but functioning primarily as hijackers
- Email attachments with embedded macros — less common for this family, but occasionally used in targeted campaigns
- Torrent files — pirated software packages frequently contain bundled PUPs as additional monetization
- Compromised advertising networks — malvertising campaigns that trigger automatic downloads through browser exploits
What It Does On Your Machine
Once installed, Adzmi.com immediately modifies your browser configuration to ensure all web searches and new tabs route through its controlled infrastructure. The hijacker typically changes your default search engine to a custom search page hosted on Adzmi.com or an affiliated domain, replaces your homepage with an advertising-heavy portal, and intercepts new tab behavior to display sponsored content instead of your chosen page. These modifications persist across browser restarts because the hijacker creates multiple fallback mechanisms in registry keys and browser preference files.
The hijacker monitors your browsing activity to build an advertising profile used for targeted ad delivery. Every search query you enter gets transmitted to the hijacker's servers before being forwarded to a legitimate search engine (often with injected sponsored results appearing first). Your clicks, visited sites, search terms, and even time spent on pages are logged and sold to advertising networks or used to optimize the hijacker's own ad placement. This tracking occurs through both traditional browser cookies and more persistent local storage mechanisms that survive typical privacy-clearing operations.
Beyond data collection, Adzmi.com degrades system performance by consuming bandwidth for constant communication with advertising servers, injecting additional JavaScript into pages you visit, and maintaining background processes that reload hijacker components if you attempt removal through browser settings alone. The redirects themselves create security risks because the intermediate advertising pages you're forced through may host exploit kits, phishing forms, or additional malware downloads. Many users report being redirected through multiple hops—clicking a search result takes them first to Adzmi.com, then through two or three advertising intermediaries, before finally reaching the intended destination if they're lucky.
Typical filesystem and registry artifacts associated with Adzmi.com infections include:
// Main installation folder with randomized GUID name
C:\Users\
// Configuration and tracking data storage
C:\Program Files (x86)\Adzmi_Updater\
// Fake updater component (not always present)
Adzmi Service = "C:\Users\...\{GUID}\adzmi.exe"
HKLM\Software\WOW6432Node\Adzmi
// Installation metadata and configuration
HKCU\Software\Microsoft\Internet Explorer\Main\
Start Page = "http://adzmi.com/?src=hp"
Search Page = "http://adzmi.com/search/"
// Unauthorized extension directory with random ID
Manual Removal — Step by Step
Disconnect and Document
Disconnect your computer from the network immediately—unplug Ethernet or disable Wi-Fi. This prevents the hijacker from downloading additional components or transmitting collected data. Take a screenshot of your current homepage, search engine, and any suspicious browser extensions for reference, as you'll verify these are restored after removal.
Boot to Safe Mode with Networking
Restart your computer and enter Safe Mode with Networking (on Windows 10/11: hold Shift while clicking Restart, then navigate to Troubleshoot > Advanced Options > Startup Settings > Restart, then press F5). This prevents the hijacker's startup components from loading while maintaining internet access for downloading removal tools.
Uninstall Suspicious Programs
Open Settings > Apps > Apps & Features (or Control Panel > Programs and Features on older Windows). Sort by install date and uninstall anything installed around the time your browser issues started. Look specifically for unfamiliar programs with names like "Adzmi," "Web Companion," "SearchProtect," or generic names with version numbers. Uninstall anything you don't recognize from reputable publishers.
Remove Browser Extensions
Open each browser you use and access the extensions/add-ons manager (chrome://extensions/ for Chrome, about:addons for Firefox, edge://extensions/ for Edge). Remove any extensions you didn't intentionally install, paying special attention to those lacking a clear publisher or description. Don't just disable them—fully remove them. Check all browser profiles if you use multiple accounts.
Clean Registry Persistence
Press Win+R, type "regedit," and navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run and HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run. Look for entries pointing to unknown executables in AppData or ProgramData folders. Delete suspicious entries, but be conservative—only remove entries you can positively identify as related to Adzmi.com. Export a backup of each key before deletion.
Delete File System Artifacts
Open File Explorer with hidden files visible (View tab > Hidden items checkbox). Navigate to C:\Users\[YourName]\AppData\Local\ and AppData\Roaming\ and delete any folders related to Adzmi or matching the GUID pattern you found in registry entries. Check C:\Program Files\ and C:\Program Files (x86)\ for Adzmi-related folders. Empty the Recycle Bin when done.
Reset Browser Settings
In each browser, access settings and perform a reset: Chrome (Settings > Reset settings > Restore defaults), Firefox (Help > More Troubleshooting > Refresh Firefox), Edge (Settings > Reset settings > Restore defaults). This removes unauthorized homepage, search engine, and startup modifications. You'll need to reconfigure your preferred settings afterward, but extensions and bookmarks are typically preserved.
Check Scheduled Tasks
Open Task Scheduler (search "Task Scheduler" in Start menu), navigate to Task Scheduler Library, and review the list for tasks with suspicious names or pointing to executables in AppData. Hijackers often create scheduled tasks to re-download components. Right-click and delete any tasks associated with Adzmi or unknown publishers.
Run Malwarebytes Scan
Download Malwarebytes (from malwarebytes.com) and perform a full Threat Scan. Even if you've manually removed visible components, dedicated anti-malware tools detect tracking cookies, modified preference files, and residual components that manual removal misses. Quarantine and remove all detected items. Consider running a second scan with HitmanPro or AdwCleaner for additional coverage.
Verify and Change Passwords
Because Adzmi.com tracks browsing activity and could have redirected you through credential-harvesting pages, change passwords for critical accounts (email, banking, shopping sites) from a known-clean device. Enable two-factor authentication where available. Monitor your accounts for unusual activity over the following week.
Reboot and Test
Restart your computer normally (not in Safe Mode), reconnect to the network, and thoroughly test browser behavior. Open each browser, verify your homepage and search engine are what you expect, open several new tabs, and perform test searches. Navigate directly to your router's admin page (typically 192.168.1.1) and verify DNS settings haven't been modified—they should point to your ISP's DNS or a service like 8.8.8.8 (Google DNS), not unfamiliar IP addresses.
Prevention
- Always choose Custom installation when installing free software. Read every screen carefully and deselect any "recommended" toolbars, homepage changes, or additional software offers. The "Express" option almost always includes bundled PUPs.
- Download software only from official publisher websites, never from third-party download aggregators like Softonic, Download.com, or CNET. These sites frequently repackage installers with monetization bundles that include hijackers.
- Keep your browser and operating system updated through official update mechanisms. Many hijackers exploit outdated browser versions. Enable automatic updates in Windows Update and your browser settings.
- Install a reputable ad blocker like uBlock Origin to prevent malicious advertising and fake update prompts from displaying. This blocks many hijacker distribution methods before you encounter them.
- Review installed browser extensions monthly and remove anything you don't actively use. Browser extensions have broad permissions and represent a common infection vector for hijackers.
- Avoid pirated software and key generators, which are frequently bundled with malware. The "free" cracked program costs you far more in security risks and remediation time than purchasing legitimate software.
- Configure Windows to show file extensions (File Explorer > View > File name extensions). This helps you identify suspicious files like "document.pdf.exe" that masquerade as legitimate file types.
- Maintain regular backups of important data to an external drive or cloud service not continuously connected to your computer. This protects against data loss from all malware types and gives you a clean restore point if infections persist.
Bring It In
While the manual removal steps above work for many Adzmi.com infections, browser hijackers increasingly employ rootkit-like techniques that resist standard removal procedures. If you've followed these steps and still experience redirects, unwanted search engines, or suspicious browser behavior, the infection likely includes components beyond typical hijacker behavior. Some variants modify system files, install kernel-level drivers, or distribute across network shares to other computers on your home or office network.
Computer Repair Roswell has removed thousands of browser hijackers, adware infections, and PUPs from Georgia computers over our years in business. We use professional-grade diagnostic tools unavailable to consumers, clean infections at the system level before Windows fully loads, and verify complete removal through behavioral testing that goes beyond simple antivirus scanning. We're located at 360 Cobb Parkway S, Suite 202, Marietta, GA 30060—just a short drive from anywhere in Roswell. Call us at (770) 667-9487 to schedule same-day service, or stop by our shop Monday through Friday, 9 AM to 6 PM. We'll get your browsing back to normal and show you exactly what was happening on your machine.