Adware Examples (2024): The 7 Worst Attacks of All Time

By Tibor Moes / Updated: January 2024

Adware Examples (2023): The 7 Worst Attacks of All Time

Adware has long been a thorn in the side of internet users, sneaking into devices to disrupt and deceive. This article will explore some of the most notorious adware attacks in history, providing key insights and statistics.


Adware is intrusive software that displays or downloads advertisements to a computer, often without the user’s permission.

  • Bonzi Buddy (1999): This adware presented as a friendly virtual assistant but was involved in deceptive advertising. It resulted in a $75,000 fine for violating children’s online privacy.
  • Gator / Claria (2002): Known for its aggressive advertising tactics, Gator was installed on millions of PCs without user consent. By mid-2003, it was on an estimated 35 million computers.
  • CoolWebSearch (2003): This adware hijacked web browsers to redirect searches and display ads. It generated over $300 million annually for its creators.
  • 180 Solutions / Zango (2005-2006): Engaging in deceptive software practices, this adware faced legal action. It had to give up $3 million in ill-gotten gains.
  • Superfish (2006): Superfish raised privacy and security concerns with its widespread reach. By 2014, it had over 80 million users.
  • Ask Toolbar (2011): Known for being difficult to remove, this toolbar significantly impacted user experience. In 2012, reached 100 million global users per month.
  • Fireball (2017): This adware took browser hijacking to a new level, infecting a vast number of computers. It had infected over 250 million computers worldwide.

Don’t become a victim of malicious ads. Protect your devices with the best antivirus software and your privacy with the best VPN service.

Adware Examples

1. Bonzi Buddy (1999)

In the late 1990s, as the internet was blossoming into the vibrant digital ecosystem we know today, a seemingly innocuous virtual pet named Bonzi Buddy appeared on the scene.

Presented as a friendly purple gorilla, Bonzi Buddy offered to assist users with web navigation and email management. However, beneath this charming exterior lurked a more dubious agenda.

Bonzi Software, the creators of this digital companion, were soon embroiled in a legal maelstrom. Accused of deceptive advertising practices, they found themselves at the center of a class-action lawsuit. But the troubles didn’t end there.

The Federal Trade Commission (FTC), as detailed on, intervened, leading to Bonzi Software being ordered to pay $75,000 for violating the Children’s Online Privacy Protection Act.

This incident not only exposed the deceptive practices of some early digital advertisers but also underscored the importance of protecting children’s privacy online, a concern that remains pertinent to this day.

2. Gator / Claria (2002)

As the new millennium unfolded, another digital adversary emerged: Gator, which would later rebrand itself as Claria. This software, masquerading as a helpful tool, was often unwittingly installed by users along with other applications. Its purpose was far from benign, as it tracked user behavior and displayed unsolicited advertisements.

By mid-2003, according to a report from, Gator had found its way onto an estimated 35 million PCs around the globe. This staggering number not only highlighted the pervasive nature of Gator but also painted a clear picture of the adware epidemic that was sweeping through the early internet.

Gator’s widespread installation raised significant concerns regarding user consent and privacy, prompting a broader discussion about the ethics of software distribution and the importance of transparent user agreements.

3. CoolWebSearch (2003)

In 2003, the digital world witnessed the emergence of CoolWebSearch, an adware program that soon became notorious for its intrusive tactics. Unlike conventional software, CoolWebSearch acted more like a digital hijacker, taking over web browsers without the user’s consent.

It redirected internet searches to its own websites, bombarding users with a barrage of advertisements. This strategy was not just a nuisance for users; it was incredibly lucrative for its creators. As reported by, CoolWebSearch generated over $300 million annually, a testament to the immense profitability of adware.

This staggering sum underscored the alarming extent to which such invasive software could monetize the everyday online activities of unsuspecting users. CoolWebSearch wasn’t just a software problem; it was a glaring example of how online vulnerabilities could be exploited for enormous financial gain.

4. 180 Solutions / Zango (2005-2006)

The mid-2000s saw the rise of another adware giant, 180 Solutions, which later became known as Zango. This software, often bundled with free downloads, secretly monitored user behavior to display targeted advertisements. The company’s methods, however, crossed legal boundaries.

In a move that highlighted the growing seriousness with which such practices were being treated, the Federal Trade Commission (FTC) stepped in. As stated on, 180 Solutions/Zango was compelled to surrender $3 million in ill-gotten gains. This action represented a significant moment in the fight against invasive adware.

It signaled a growing recognition of the need to protect consumers from covert digital surveillance and underscored the legal consequences for companies that engaged in such deceptive practices.

5. Superfish (2006)

Superfish, a name that became synonymous with one of the most controversial adware stories of the 2000s, began its journey in 2006. Initially, it was marketed as a visual search technology that helped users find and purchase products online. However, as its operations expanded, so did the concerns about its methods.

By 2014, as reported by, Superfish products had amassed over 80 million users, a number that highlighted its widespread penetration into the digital marketplace. But beneath this veneer of success lurked a troubling reality.

Superfish was later found to be engaging in practices that compromised user security, notably by injecting ads and potentially intercepting encrypted web traffic. This revelation sparked a significant outcry, drawing attention to the fine line between helpful software enhancements and invasive breaches of user privacy.

Superfish’s story became a cautionary tale about the importance of respecting user trust and maintaining robust digital security standards.

6. Ask Toolbar (2011)

The Ask Toolbar, introduced by in 2011, represented another facet of the complex world of adware. Originally designed as a browser add-on to facilitate easier access to’s search services, the toolbar quickly found its way onto numerous computers, often bundled with other software downloads.

By 2012, had reached a milestone of 100 million global users per month, as stated by This impressive user base underscored the toolbar’s reach and influence. However, the Ask Toolbar soon became infamous for its persistence and difficulty to remove, leading to widespread user frustration.

It was frequently criticized for changing browser settings without clear consent and for its tenacity in clinging to users’ systems. This example shed light on the broader issues of software consent and user autonomy in the digital age, emphasizing the need for transparency and respect in software design and distribution.

7. Fireball (2017)

In 2017, the digital world faced a formidable new challenge with the advent of Fireball, an adware strain of unprecedented scale. Fireball distinguished itself not just by its functionality, but by the sheer magnitude of its impact. According to, Fireball had infected over 250 million computers worldwide, a staggering figure that underscored its global reach.

This adware worked by taking over web browsers to inject ads and manipulate search engines, directing traffic to certain websites. The genius of Fireball lay in its stealth and efficiency; it silently infiltrated systems, often bundled with legitimate software, making its presence unnoticed by the average user.

The story of Fireball is particularly noteworthy because of its potential for more sinister applications. While primarily used for generating ad revenue through search engine manipulation, its ability to execute additional code made it a potent tool for more malicious activities.

This aspect of Fireball raised significant concerns in the cybersecurity community about the evolving nature of adware. It wasn’t just an annoyance; it was a potential backdoor for more harmful cyber threats.


The stories of Bonzi Buddy, Gator, CoolWebSearch, 180 Solutions, Superfish, Ask Toolbar, and Fireball reveal a stark reality in our digital world: adware is not just an annoyance, but a serious threat to online privacy and security.

These examples highlight the evolving nature of adware attacks and the sophistication of their methods. As internet users, staying informed and vigilant is key to navigating the digital landscape safely.

In light of these threats, the importance of robust cybersecurity cannot be overstated. Investing in reliable cybersecurity solutions from trusted brands like Norton, Avast, TotalAV, Bitdefender, McAfee, Panda, and Avira is crucial. These providers offer advanced protection features that guard against the latest adware and other cyber threats.

By choosing a reputable cybersecurity solution, individuals and businesses alike can significantly bolster their defenses against the insidious and evolving threats posed by adware, ensuring safer online experiences and peace of mind.


  2. WSJ

Author: Tibor Moes

Author: Tibor Moes

Founder & Chief Editor at SoftwareLab

Tibor has tested 39 antivirus programs and 30 VPN services, and holds a Cybersecurity Graduate Certificate from Stanford University.

He uses Norton to protect his devices, CyberGhost for his privacy, and Dashlane for his passwords.

You can find him on LinkedIn or contact him here.