Searchpage

Category: browser_modifier · Aliases: BrowserModifier:Win32/SearchPage, Adware:Win32/SearchPage, Win32/SearchPage, SearchPage Hijacker, Trojan.SearchPage · Sample count (EMBER 2018): 17 · Enrichment: curated_sourced · Updated: 2026-10-15
Category: Browser_ModifierStatus: Automated SignaturePlatform: WINDOWS_PEStage: Execution, PersistenceActor: Unknown / CybercriminalIndustry: Global / OpportunisticMotivation: Opportunistic🕸 Explore Relationship Graph⚙ API JSON⚡ Sigma Rule💾 YARA RuleOS: Windows 11, Windows 10, Windows 7
Executive Summary
SearchPage (classified across endpoint security engines as BrowserModifier:Win32/SearchPage, Adware:Win32/SearchPage, and Trojan.BrowserModifier.SearchPage) is a persistent browser hijacker and search redirection tool engineered to monetize web traffic.

Table of Contents

Overview

SearchPage (classified across endpoint security engines as BrowserModifier:Win32/SearchPage, Adware:Win32/SearchPage, and Trojan.BrowserModifier.SearchPage) is a persistent browser hijacker and search redirection tool engineered to monetize web traffic. Distributed primarily via bundled freeware installers, rogue browser extension prompts, and misleading torrent downloads, SearchPage hijacks user web browsing navigation by forcefully reconfiguring browser preferences across Google Chrome, Mozilla Firefox, and Microsoft Edge. Upon installation, it modifies shortcut targets (`.lnk` files) on the desktop and taskbar by appending URL parameters, changes default search engines, and replaces new tab homepages with syndicated search domains (such as searchpage.com). SearchPage intercepts search keywords, routes traffic through multiple intermediate redirection servers, and injects pay-per-click advertisements and promoted links ahead of organic results. To resist removal, SearchPage installs persistent background update monitors that restore modified browser settings if altered by the user.

Known aliases

Threat reports may refer to this family under multiple names:

MITRE ATT&CK Techniques

Observed techniques used by this family, mapped to our technical analysis hubs and the official MITRE ATT&CK framework:

→ Explore the complete 226-Technique ATT&CK Threat Matrix

MITRE D3FEND™ Defensive Countermeasures

Defensive techniques mapped to counter the offensive tradecraft observed in this family (via the MITRE D3FEND matrix):

D3FEND IDCountermeasure NameTacticCountered ATT&CKDefensive Guidance
D3-RVMRegistry Value Modification AnalysisDetectT1112Log Windows Event ID 4657 to monitor unauthorized modifications to system configuration and security settings.
D3-BEABrowser Extension AllowlistingHardenT1176Deploy enterprise browser policies via GPO or Intune to block unauthorized side-loaded extensions and add-ons.
D3-RBIRemote Browser IsolationIsolateT1189Execute untrusted web browsing sessions in disposable cloud containers to isolate drive-by exploits from local endpoints.
D3-STASecurity Tool Anti-Tamper EnforcementHardenT1562.001Block unauthorized modification of antivirus registry flags and prevent stopping security agent services.

Tiered Detection Rules (Cisco CAIRN Model)

Modern threat detection requires multi-layered rule engineering. We classify detections into three operational tiers based on signal fidelity:

Tier 1 Primitive Artifact Rule (Fast Triage)

Matches raw strings and file markers. Vulnerable to binary repacking and simple obfuscation.

rule MALWARE_WIN_SEARCHPAGE_T1_ARTIFACT {
    meta:
        description = "Tier 1 Primitive Artifact: Raw string matches for Searchpage"
        tier = "T1 - Primitive Artifact"
        confidence = "Low-Medium (Fast Triage)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        $s1 = "searchpage" ascii wide nocase
        $s2 = "browsermodifier:win32/searchpage" ascii wide nocase
        $s3 = "adware:win32/searchpage" ascii wide nocase
        $s4 = "win32/searchpage" ascii wide nocase
        $s5 = "searchpage hijacker" ascii wide nocase
        $s6 = "trojan.searchpage" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

Tier 2 Behavioral Context Rule (Process Chains & Sigma)

Tracks parent-child process anomalies and suspicious scripting telemetry. Resilient against file renames.

title: SystemHelpDesk Detection - Searchpage (Browser Modifier) Execution & Triage
id: 2982a47d-9085-500c-99a6-a8166475acd8
status: production
description: Detects execution, defense evasion, and persistence behaviors associated
  with the Searchpage malware family. Detects suspicious execution from temporary
  user directories with hidden window flags and background transfer utilities.
references:
- https://malware-families-catalog.systemhelpdesk.com/families/searchpage
- https://malware-families-catalog.systemhelpdesk.com/defensive/ransomware-protection
- https://malware-families-catalog.systemhelpdesk.com/
author: Ricky Jordan, Lead Threat Intelligence Analyst, SystemHelpDesk MSP
date: '2026-10-14'
modified: '2026-10-14'
tags:
- attack.browser-modifier
- author.ricky-jordan
- source.systemhelpdesk-mfc
- attack.t1176
- attack.t1547_009
- attack.t1053_005
- attack.t1112
- attack.t1071_001
logsource:
  category: process_creation
  product: windows
detection:
  selection_process:
    Image|endswith:
    - \cmd.exe
    - \powershell.exe
    - \cscript.exe
    - \wscript.exe
    CommandLine|contains:
    - AppData\Local\Temp
    - -WindowStyle Hidden
    - /e:jscript
    - bitsadmin /transfer
  condition: selection_process
falsepositives:
- Legitimate enterprise administrative scripts during approved change windows
- Authorized IT software deployment utilities and backup management agents
level: medium

Tier 3 Attribution Fingerprint Rule (High Fidelity)

Deep signature matching distinctive operational fingerprints and payload characteristics.

rule MALWARE_WIN_SEARCHPAGE_T3_ATTRIBUTION {
    meta:
        description = "Tier 3 Attribution Fingerprint: Heuristic detection for Searchpage tradecraft"
        tier = "T3 - Attribution Fingerprint"
        confidence = "High (Confirmed Family Signature)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        // Core family identifier & heuristic payload signatures
        $attrib_str = "searchpage" ascii wide nocase
        $pe_magic = "MZ" ascii
        $net_marker = "http" ascii nocase
    condition:
        uint16(0) == 0x5a4d and ($attrib_str and $net_marker) and filesize < 15MB
}
SOC & SIEM Rule Downloads: ⬇ Download YARA Rule (.yar) ⬇ Download Sigma Rule (YAML) ⬇ Download Sigma Rule (JSON) ⚙ Threat Profile API (JSON)

Containment & Response Steps

Home Users: If you suspect a malware infection on your personal device, disconnect from the internet immediately and run a full system scan with your antivirus software (see our TotalAV Antivirus & Security Support Guide). The steps below are intended for IT professionals responding to enterprise incidents.

Ordered checklist for responders. Adapt to your environment and engage professional support for active incidents.

  1. Use enterprise endpoint management tools to forcefully remove the rogue browser extensions and reset the default search providers.
  2. Audit the properties of all browser shortcuts (`.lnk` files) on the user's Desktop, Taskbar, and Start Menu to remove any appended malicious URLs.
  3. Check the local Group Policy Editor (`gpedit.msc`) for any policies enforcing the installation of specific extensions, and delete them.
  4. Deploy specialized adware removal tools (e.g., AdwCleaner) to locate and strip any deeply embedded registry hooks or watchdog services.

What to Avoid

Common mistakes during response to this family that can destroy evidence, spread the infection, or worsen recovery.

  1. Do not rely solely on the browser's internal 'reset' button; many hijackers use watchdog services to immediately re-apply the malicious settings.
  2. Avoid ignoring the infection, as the affiliate networks powering these hijackers often serve malicious advertisements (malvertising) that can lead to more severe infections.

References & External Analysis

Frequently Asked Questions

What is BrowserModifier:Win32/SearchPage?

SearchPage is a browser modifier and hijacker that changes browser search engines and homepages to redirect traffic to ad networks.

How does SearchPage hijack browser shortcuts?

It modifies browser .lnk shortcut properties on the desktop and taskbar to append malicious redirect URL arguments.

How does SearchPage prevent users from changing their search engine back?

It deploys background watchdog processes and scheduled tasks that continuously re-apply the malicious search configuration.

What risks does SearchPage pose to endpoint users?

It exposes users to deceptive advertisements, tracking of private web queries, and potential drive-by malware downloads.

How do you completely remediate a SearchPage browser infection?

Remove unwanted browser extensions, restore clean browser shortcut paths, delete watchdog scheduled tasks, and reset browser profiles.

How do I remove the Searchpage Browser_Modifier from Windows?

Manual removal of Searchpage is highly discouraged as it may leave persistence mechanisms intact. We recommend disconnecting the device from the internet and utilizing a professional incident response service or enterprise-grade EDR software to conduct a full forensic sweep.

Is Searchpage a virus or a Browser_Modifier?

Searchpage is classified as a Browser_Modifier. Unlike traditional viruses that infect files, modern malware like Searchpage typically operates as a standalone payload designed to compromise systems, steal data, or deploy secondary stage implants.

What are the main symptoms of a Searchpage infection?

Symptoms of Searchpage can include unexpected system slowness, unauthorized outbound network traffic to unknown IP addresses, disabled security software, and suspicious background processes running from AppData or Temp directories.

Protect Your Network Against Browser_Modifiers

Want to prevent Searchpage and similar threats from compromising your organization? Read our comprehensive defensive guide: Think You've Been Hacked? What To Do First.

📣 Threat Intel Correction or Update?

Notice an outdated IOC, unlisted alias, or disputed attribution? Threat researchers are invited to propose an update on GitHub or contact the SystemHelpDesk research desk. All community revisions are credited in our public CHANGELOG.

Need help with an active incident? Published by the SystemHelpdesk Threat Intelligence Team.

Machine-readable

Get this profile as JSON: https://malware-families-catalog.systemhelpdesk.com/api/searchpage.json

Ecosystem & Interactive Environments

This profile is part of the Malware Families Catalog, a public dataset of 2,899 malware families. The catalog is also published across our ecosystem: Hugging Face, Kaggle, Zenodo, Replit, StackBlitz, CodeSandbox, and CodePen.