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Linux Hacks & Cracks - Page 82

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DoS Extortion Tactics Threaten Organizations Under New Legislation

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The practice of holding websites hostage under the threat of denial-of-service (DoS) attacks is declining, according to security researchers at Symantec. DoS attacks are carried out by botnet operators using armies of remotely controlled PCs to flood a site with traffic and information requests. The attacks can cause sites and web services to run slowly or shut down altogether.

New Phishing Method Exposes Banking Security Flaws With Call Forwarding

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Researchers at SecureWorks have uncovered a new type of phishing attack that tries to trick victims into forwarding their telephone calls to the attacker to thwart attempts by a bank to detect fraud. The attack, found by the Atlanta-based security vendor this week, begins with an e-mail sent from the phisher telling the potential victim their bank needs to verify their phone number immediately, and their account will be suspended if they do not confirm the number. The victim is told to confirm their number by dialing *72 and then another number, effectively forwarding their calls to the phisher's telephone.

OpenOffice Security: Risks of Password Recovery Tools and Attacks

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Security experts have warned that password recovery tools for OpenOffice, the open-source application suite, are vulnerable to abuse. The release of version 1.0.4 of Intelore's OpenOffice Password Recovery software on Thursday allows IT managers and systems administrators to recover OpenOffice passwords and discard formatting and editing restrictions--for example, locked cell protection and permissions. The software allows password recovery through brute force and dictionary-based attacks, or a combination of both.

Comparing KeeLog and KeyGhost Keylogger Sizes and Trade-Offs

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You will notice in the picture at right that the KeeLog product is the smallest of the three, followed by the plug style KeyGhost and then the cable style KeyGhost. I tossed the KeyCarbon from my previous article in to help you with the size comparison. I'm not sure why KeyGhost chose to make their Time/Date stamping cable as big as it is. One failed on me during testing so I took it apart to see if I could reset it somehow. The core electronics look like they could easily be put into a smaller package. Maybe in later releases they will shrink down the housing. All of these keyloggers have their tradeoffs which I will cover shortly.

Critical Internet Explorer Zero-Day: Cody Pierce Exploit Research

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Cody Pierce knew right away what he had found, but he wasn't exactly sure how serious it was. Pierce and his fellow researchers at TippingPoint had spent much of the early part of last year poking around in the ActiveX controls in Windows XP, looking for controls that might be vulnerable. The team had decided at the beginning of the year that with all of the applications and code now running on the Web instead of desktops, ActiveX would be a prime avenue of attack for hackers in the coming months and years, and they wanted to get there before the attackers did.

Critical XSS Issues Found In Leading Websites Exposing User Data

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Eight out of ten Web sites contain common flaws that can allow attackers to steal customer data, create phishing exploits, or craft a variety of other attacks, a security company reported today. WhiteHat Security regularly scans hundreds of "very popular, very high-traffic sites" for its online business customers, says Jeremiah Grossman, the company's founder. "More than likely, you have shopped there, or bank there," he says. Thirty percent of scanned sites contain an urgent vulnerability, such as one that allows direct access to a company database with customer information, he says.

Enhanced Techniques For Hiding Malicious Code By Cyber Attackers

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Cybercrooks who rig Web sites to break into PCs are getting better at hiding their malicious code, a security expert said Wednesday. Increasingly the actual code, often JavaScript, used to attack PCs is hidden in Flash animations or scrambled so that anyone who examines the source of a page can't easily identify it, said Jose Nazario, a senior software engineer at Arbor Networks, in a presentation at the CanSecWest security confab here.

Storm Worm Email Attacks Spike: 60 Times More Threats Detected

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The largest proliferation of email virus attacks in more than a year is likely to have occurred last Thursday, according to security company Postini. Postini said two variations of the Storm Worm virus, which originally spread across the internet in January, have quickly driven global virus levels 60 times higher than their daily average. Email users should be on alert for messages with "love"-related subject lines and an executable attachment that would contain a Trojan virus, as well as messages with "Worm Alert!" subject lines that contained a dot-zip file full of malicious code.

Skype Worm Spreading Trojan: Email Harvesting And Click Fraud

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A worm targeting Skype's VoIP application is harvesting e-mail addresses and directing users to a range of sites hosting other malicious software, security vendors said Monday. Once a machine is infected, the worm sends a malicious link via instant messages to other users in person's Skype contact list, according to F-Secure's blog.

Massive Email Malware Attack Triggers Urgent Security Protocols

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Security organizations are tracking what's being described as the largest email attack since last year's Warezov outbreak, and the second onslaught this week to steal a page from the Storm Trojan's playbook. Adam Swidler, senior manager of solutions marketing for San Carlos, Calif.-based security vendor Postini Inc., said bot herders are using the outbreak to expand their array of zombie machines.

Addressing iPod Security Risks In Corporate Environments

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The recent buzz about security threats posed by iPods to corporations has reinforced the need for IT managers to treat these devices like any other removable media that employees with malicious intent can use to extract sensitive data. Following the suggestion recently made by a security company that iPods be banned from the workplace until proper protection is in place, and the emergence of a proof-of-concept iPod virus, it would seem that iPods pose a particularly high risk to corporations that let employees wander into work with these devices strung to their ears. Those same devices that entertain workers during their commute can be used to copy personal or financial data, intellectual property and other sensitive information from corporate PCs, often without a trace. The idea of stealing corporate data with an iPod has gained so much attention lately that it

Juniper Networks: New Attack Technique Compromises Embedded Devices

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A Juniper Networks security researcher says he's discovered a new type attack that can compromise embedded devices such as routers and mobile phones. The vulnerability lies in the Arm and XScale microprocessors, two chips that are widely used in these devices. "There are interesting quirks in the ARM and XScale architectures that make things very easy for an attacker," said Juniper's Barnaby Jack.

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