botnet

Wed
04
Jun
John Lister's picture

Zeus Botnet; Officials Urge: Protect Your PC Now

The Federal Bureau of Investigation (FBI) has disrupted a major malware botnet specifically designed to steal personal financial data from computers. Both US and UK security agencies are warning all users that they have a two week grace period to ... shore up their defenses before cybercriminals reactivate the threat. A botnet is essentially an army of malware-infected computers under the control of cybercriminals. In this case, the botnet is known as the GameOver Zeus. When a computer becomes infected with malware, it can also become part of a botnet. Malware infection is usually the result of ... (view more)

Mon
14
Apr
Brandon Dimmel's picture

Is Using Windows XP Really That Dangerous?

Is it really that dangerous to continue using Windows XP? Microsoft's Windows XP has officially been decommissioned as of April 8, 2014, meaning that Microsoft will not longer support the software insofar as security updates are concerned. Without ... any security updates, Windows XP is extremely vulnerable to attack if and when an operating system exploit is discovered. And, even if one is discovered, it may or may not make headlines - which means most users running Windows XP simply won't be aware their system has been compromised. It's these types of attacks that are most dangerous ... (view more)

Tue
10
Dec
Dennis Faas's picture

Microsoft Wages War Against 'ZeroAccess' Scammers

Microsoft says it has significantly disrupted, though perhaps not destroyed, a major network of infected computers (also known as a 'botnet'). It's estimated those behind the scheme have generated $2.7 million a month in revenue. The ZeroAccess ... botnet is thought to involve more than two million computers infected with a kind of malware that allows cybercriminals to remotely control these systems. Rather than try to steal personal data from the computers, the operators used this control to run a major advertising scam. In effect, the operators set up websites to sell pay-per-click advertising ... (view more)

Fri
04
Oct
Dennis Faas's picture

Symantec Saves 500,000 PCs From Massive Botnet

Security firm Symantec says it has disabled roughly 500,000 computers hijacked by a major botnet. Unfortunately, the botnet -- known as ZeroAccess -- still has around 1.4 million machines under its control. A botnet is a network of machines that ... have fallen victim to malicious software. This allows the cybercriminals running the network to combine the machines to create a powerful weapon. Sometimes botnet operators will use the computers to spread more malicious software, attack a business or government agency, or bring a website down. Infected Machines Used For Bogus Ad Clicks In this case ... (view more)

Tue
16
Apr
Dennis Faas's picture

Huge Botnet Attack Targets WordPress Sites

Hackers have reportedly initiated a widespread attack on sites that use the WordPress publishing platform. Hosts using particularly weak passwords are being told to change those passwords or risk having their sites taken over. The hacking campaign ... reportedly uses a "brute force" strategy, meaning hackers use the login name "admin" and then try thousands of typical passwords to bypass security. Hackers Hoping to Create a "Beefy" Botnet The goal, according to security experts, is to build a huge and powerful botnet. "One of the concerns of an attack like this is that the attacker is ... (view more)

Thu
13
Dec
Dennis Faas's picture

Global Botnet Ring Taken Down by FBI, Facebook

Facebook has helped the Federal Bureau of Investigation (FBI) track down the cybercriminals whose "botnet" is said to have caused losses worth more than $850 million. A total of 29 local FBI offices and departments worked on the case, along with a ... half dozen foreign police and crime agencies. Ten people have now been arrested in the United States, the United Kingdom, Bosnia and Herzegovina, Croatia, Macedonia, New Zealand, and Peru. (Source: fbi.gov ) Those accused of participating in the botnet scheme allegedly helped spread a worm virus called 'Yahos.' This virus reportedly self-replicated ... (view more)

Mon
05
Nov
Dennis Faas's picture

Nearly 1 in 8 Home Networks Infected: Report

According to a new report, nearly one in every eight home networks in North America is infected with malware. Experts consider about half of those threats to be "serious." The study comes from Mountain View, California's Kindsight Security Labs. In ... its third-quarter malware report, the company indicates that 13 per cent of all home networks are infected. Kindsight's report suggests that about 6.5 per cent of these infections are serious enough to have converted the computers on the infected network into a botnet , or are capable of compromising a user's information security. ZeroAccess Botnet ... (view more)

Mon
10
Sep
Dennis Faas's picture

Jailed Botnet Creator Sold Access to Infected PCs

The man convicted of infecting 72,000 computers has been sentenced to two and a half years behind bars. Joshua Schichtel created a network of hijacked machines and then -- for a fee -- allowed others to control them. Schichtel first came to the ... attention of authorities in 2004. At the time, he was part of a group charged with using infected computers to carry out distributed denial of service (DDoS) attacks. Earlier DDoS Attack Goes Unpunished Under a DDosS attack, a hacker uses many computers to send service requests to legitimate website servers. Because servers are set up to respond to all ... (view more)

Thu
12
Jul
Dennis Faas's picture

Yahoo Mail Exploit Blamed for Widespread Spamming

Rumors of a rampant Android-based botnet that is spamming individuals around the world are now proving to be unfounded. Instead, experts have discovered that Yahoo Mail may have been compromised. Rumors of an Android-based botnet first began ... circulating last week. Reportedly, the botnet was sending out waves of pharmacy, penny stock, and e-card spam emails. Terry Zink, a program manager for Microsoft's Forefront security product team, added credibility to the rumors by claiming, "a spammer has control of a botnet that lives on Android devices. These devices login to user's Yahoo Mail account ... (view more)

Tue
10
Apr
Dennis Faas's picture

Major Mac Botnet Infects 600,000 Machines

Doctor Web, a Russian antivirus company, recently announced its discovery of covert, zero-day-exploiting Trojan Horse malware which it believes has infiltrated more than 600,000 Macintosh systems worldwide. A number of other security companies later ... confirmed that staggering figure is probably accurate. "Flashback" Trojan Largest Mac Botnet Ever Doctor Web originally estimated that more than half a million machines were infected with "Flashback." This particular instance of malware gets installed on an unsuspecting user's computer during a visit to a previously-compromised website. Once ... (view more)

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