OpticalUpdaterfld Adware
OpticalUpdater is a type of adware that exhibits characteristics of a browser hijacker. Upon successful infiltration, it initiates aggressive advertising campaigns and endorses counterfeit search engines by altering browser configurations. Additionally, like most adware and browser hijackers, it gathers information related to users' browsing activities.
Typically, users unintentionally download and install OpticalUpdater, leading to its classification as a Potentially Unwanted Application (PUA).
This software is commonly distributed through deceptive Adobe Flash Player updates. It's important to note that fraudulent software updaters/installers are also utilized to disseminate more malicious entities, such as trojans and ransomware.
Adware facilitates the display of intrusive ads like pop-ups, banners, coupons, and surveys on various websites or interfaces. These ads detrimentally impact the browsing experience by slowing down page loading and obstructing content visibility. Moreover, clicking on these intrusive ads may redirect users to untrustworthy or malicious websites, and some ads might secretly download and install software, including PUAs.
Browser hijackers modify browser settings by setting fake search addresses as the homepage, default search engine, and new tab/window URLs. With OpticalUpdater installed, each new browser tab/window and web search conducted via the URL bar redirects to the promoted address. Counterfeit search engines often fail to provide authentic search results, leading to redirections or redirection chains ultimately concluding at genuine sites like Yahoo, Bing, or Google.
Furthermore, browser hijackers have the capability to revert any modifications users attempt to make to their browsers and may restrict or deny access to browser settings. As a result, restoring an affected browser to its normal state becomes unfeasible without removing the hijacking software.
How Are Browser Hijackers Commonly Distributed Online?
Browser hijackers are commonly distributed online through various deceptive methods. Some common distribution channels include:
Bundled Software:
Browser hijackers often come bundled with free software or applications that users download from the internet. Users may unknowingly install the hijacker along with the desired software if they don't carefully review the installation options and deselect additional, unwanted components.
Deceptive Software Updates:
Attackers may exploit fake software updates, particularly for popular applications like Adobe Flash Player or Java. Users might be prompted to update their software through pop-up messages or fake update notifications, leading to the unwitting installation of browser hijackers.
Malicious Websites:
Visiting malicious websites or clicking on suspicious links can result in the automatic download and installation of browser hijackers. These websites may host malicious scripts or use social engineering techniques to trick users into installing the hijacking software.
Infected Email Attachments:
Browser hijackers can be distributed through malicious email attachments. Users may receive seemingly innocuous emails with attachments that, when opened, install the hijacker on the system.
Clickjacking:
Clickjacking involves hiding malicious actions behind seemingly legitimate clicks. Users may be tricked into clicking on buttons or links that appear harmless but actually trigger the download and installation of browser hijackers.
Freeware and Shareware Platforms:
Users often download software from freeware or shareware platforms. Browser hijackers may be bundled with seemingly legitimate free applications, and users may inadvertently install them when acquiring other software.
Compromised Browser Extensions:
Some browser extensions or add-ons may become compromised or malicious over time. Users who install these extensions may find that their browsers are later hijacked as the extensions modify settings without the user's knowledge.
