Security

Articles about Security on omid.dev — guides, topics, and notes from the field.

Farewell Lastpass, We don't need more data breach

Published: December 29, 2022 Reading time: 2 min

You’ve heard it again and again: You need to use a password manager to generate strong, unique passwords and keep track of them for you. And if you finally took the plunge with a free and mainstream option, particularly during the 2010s, it was probably LastPass. For the security service’s 25.6 million users, though, the company made a worrying announcement last week: A security incident the firm previously reported on November 30 was actually a massive and concerning data breach that exposed encrypted password vaults—the crown jewels of any password manager—along with other user data. ...

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Cross-platform botnet targets SSH-enabled devices

Published: December 12, 2022 Reading time: 1 min

Microsoft researchers found a cross-platform botnet that originates from malicious software downloads on Windows devices & succeeds in propagating to a variety of Linux-based devices by enumerating default credentials on internet-exposed SSH-enabled devices. Microsoft researchers observed that the initial infection points related to the botnet were devices infected through the installation of malicious cracking tools that purport to acquire illegal Windows licenses. The cracking tools contain additional code that downloads and launches a fake version of svchost.exe through a PowerShell command. In some cases, the downloaded file is named svchosts.exe. ...

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What you need to know about BERserk and Mozilla

Published: September 25, 2014 Reading time: 1 min

The Intel Security Advanced Threat Research Team has discovered a critical signature forgery vulnerability in the Mozilla Network Security Services (NSS) crypto library that could allow malicious parties to set up fraudulent sites masquerading as legitimate businesses and other organizations. The Mozilla NSS library, commonly utilized in the Firefox web browser, can also be found in Thunderbird, Seamonkey, and other Mozilla products. Dubbed “BERserk”, this vulnerability allows for attackers to forge RSA signatures, thereby allowing for the bypass of authentication to websites utilizing SSL/TLS. Given that certificates can be forged for any domain, this issue raises serious concerns around integrity and confidentiality as we traverse what we perceive to be secure websites. ...

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New Facebook scams in 2014

Published: August 22, 2014 Reading time: 3 min

So many Facebook scams in 2014 have been a little worrying even though at first they all seem innocent enough, but these are social scams to lure users in to gain money or access to computers. One particular Facebook scam this year was the “Robin Williams goodbye video”, which was apparently made before his death. This fake BBC News video is a scam and no such video exists. The “Robin Williams goodbye video” started to circulate on Facebook and asks users to share the video before they can watch it, DO NOT click on it. There is no video so no point on sharing it, Symantec explains in detail that when Facebook users click on the video it asks them to either fill out a survey or install an application. When the survey is complete the scammers gain money for each one completed. ...

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The FBI is willing to pay top dollar to download some malware

Published: February 7, 2014 Reading time: 2 min

The Federal Bureau of Investigation is willing to pay top dollar for the malicious, infectious software the rest of us pay to keep out of our computers, according to the Federal Business Opportunities website. A Monday price quote request by the Investigative Analysis Unit of the agency’s Operational Technology Division is asking computer security developers and retailers to help the agency build a library of malware for an undisclosed reason, letting the companies name their price. ...

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WordPress hardened with XSS, DoS and SSRF fixes

Published: June 25, 2013 Reading time: 1 min

With the second security and maintenance release of WordPress 3.5, the developers of the popular open source blogging software have closed 12 bugs, seven of them security issues. In their announcement, the developers “strongly encourage” all users to update all their installations of the software to version 3.5.2 immediately. In addition to the fixed vulnerabilities, the new release also includes some proactive changes intended to harden the platform against attacks. ...

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Facebook Virus That Drains Your Bank Accounts: What You Need to Know

Published: June 6, 2013 Reading time: 4 min

This post has been shared originally by Malwarebytes Blog: The word about the Zeus Trojan back on Facebook has spread as fast as the malware itself across many news sites. Awareness and education about online dangers is essential but headlines like “Malware That Drains Your Bank Account Thriving On Facebook” instill fear while at the same time blame Facebook — something that may not be entirely justified. Malicious links on social networking sites are nothing new (Twitter, Linkedin to name a few). They have been, and continue to be, abused by spammers to peddle fake AV or redirect to exploit sites distributing all sorts of nasties. ...

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Iranian Hackers targeting US oil, gas, and electric companies

Published: May 26, 2013 Reading time: 2 min

The Hacker News reported: For all the talk about China and the Syrian Electronic Army, it seems there’s another threat to U.S. cyber interests i.e. Iran. Series of potentially destructive computer attacks that have been targeting American oil, gas and electricity companies tracked back to Iran. Iranian hackers were able to gain access to control-system software that could allow them to manipulate oil or gas pipelines. Malware have been found in the power grid that could be used to deliver malicious software to damage plants. The targets have included several American oil, gas and electricity companies, which government officials have refused to identify. ...

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Apple closes QuickTime vulnerabilities on Windows

Published: May 23, 2013 Reading time: 1 min

Apple has released a security update for its QuickTime media framework for Windows. Version 7.7.4 of the software closes 12 critical security holes causing memory corruption and buffer overflows when processing a number of media formats. The vulnerabilities affect Windows 7, Vista and XP SP2 or later and could be exploited to cause arbitrary code execution and application crashes. The vulnerabilities affected the playback of MP3, H.263, H.264, TeXML, JPEG, QTIF, Sorenson Video and FPX files as well as the handling of dref, enof and mvhd atoms within the program. All of the problems were reported by researchers working with HP’s Zero Day Initiative, five of them by Tom Gallagher and Paul Bates from Microsoft. ...

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Symantec vs AV-Comparatives, Which one do you trust?

Published: April 25, 2013 Reading time: 5 min

Cross-posted from PCMag SecurityWatch: Last week independent antivirus lab AV-Comparatives released the results of an on-demand antivirus detection test. The fact that Microsoft came in near the bottom wasn’t big news; the fact that Symantec scored even lower was surprising indeed. In a blog post released today, Symantec decried the entire practice of performing on-demand malware scanning tests, calling it “misleading.” In the early years of antivirus testing, every test was an on-demand scanning test. Researchers would assemble a collection of known malware, run a full scan, and record the percentage of samples detected. Modern labs work hard to devise tests that more closely reflect a user’s real-world experience, taking into account the fact that the vast majority of infections enter the computer from the Internet. Symantec contends that only the real-world sort of test is valid; I don’t entirely agree. ...

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