Security

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

Fake Lawsuit Notification Attack

Published: March 26, 2010 Reading time: 1 min

A few of days ago, we encountered an e-mail with a malicious RTF attachment. It was sent with a supposed lawsuit notification message. The e-mail didn’t mention any company by name and took a shotgun, rather than targeted, approach. Today, a security blogger forwarded us (and others) his version of the e-mail: At this point, it appears that the attachment has been replaced by hyperlink pointing to the Marcus Law Center. ...

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Child Tax Credit is the New Phishing Bait

Published: March 26, 2010 Reading time: 2 min

Who wouldn’t want some tax benefits in the current economic times? Don’t phishers and scammers know that all too well! In a new phishing scheme, We found that Child Tax Credit is being used as bait to lure parents to disclose their financial data. This attack specifically tries to convince users to make claims for credit and lower their tax burden by using their children’s education expenses. According to the Internal Revenue Service (IRS) website [PDF], taxpayers may be able to reduce their federal income tax by up to $1,000 for each qualifying child. Making use of this information, spam email discusses the expensive education of children and quickly advises recipients to use this expense to make claims for tax credits under the numerous tax benefits provided by the IRS. They make a further appeal that as a U.S. citizen or resident, recipients should apply for their tax returns. According to the email, users can get a tax refund of $75,000 for their children’s education. To apply for a refund, users need to complete a form attached to the email message. The fraudulent email has an HTML attachment named “#1924819299.pdf.htm”. ...

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Firefox, IE8 and Safari hacked at CanSecWest

Published: March 25, 2010 Reading time: 2 min

In the Pwn2Own hacking contest at the CanSecWest security conference in Vancouver, Canada, security researchers and hackers quickly hacked three of the major browsers to take control of the underline operating systems. — A German hacker who goes by the handle “Nils” used a previously unknown vulnerability in Mozilla’s Firefox to gain control of a 64-bit Windows 7 machine. — Peter Vreugdenhil an independent researcher from the Netherlands, used several vulnerabilities in Internet Explorer to take control of a machine running a patched 64-bit Windows 7 implementation. ...

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It takes only one ‘nice' person

Published: March 25, 2010 Reading time: 2 min

In the security industry we often focus heavily on new technologies and shiny new software, and forget that so much of what we see is dependent on the person behind the computer. Today, a co-worker of mine was sent an email from someone she doesn’t know, with the following text: “I’m writing this with tears in my eyes,my fam and I came down here to Wales,United Kingdom for a short vacation unfortunately we were mugged at the park of the hotel where we stayed,all cash,credit card and cell were stolen off us but luckily for us we still have our passports with us. ...

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Google-in-China saga: another hack, move to HK

Published: March 25, 2010 Reading time: 5 min

There is a risk to computer security from governments. Regulatory changes, even if they are very positive measures, can impose huge demands on an enterprise (i.e. HIPPA, Sarbanes-Oxley, California’s law requiring notification of customers whose personal information is hacked on company sites.) The “government” risk can get no bigger than the clash of Google and the government of China over the censorship issue. The world suspects that the Chinese government or its proxies were behind a campaign of hacking against Google and other major U.S companies several months ago. Google reacted to the hacks by saying in January that it would stop censoring search results for web users in China. Monday it said it would move to Hong Kong. ...

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The Facebook Dislike Button Likes Hotbar

Published: March 23, 2010 Reading time: 2 min

Not so long ago, examples of fake Firefox websites / downloads were in the news with the sites involved serving Hotbar installs. It seems the tactic of offering up Firefox (but giving you something else entirely) is going to be around for a little while. Below is a site promoting a Firefox .xpi called “The Dislike Button”, designed to let you add an “I dislike this” note to Facebook posts: ...

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Firefox 3.6.2 early edition

Published: March 23, 2010 Reading time: 1 min

Mozilla Foundation has released version 3.6.2 of its Firefox browser a week early. The group had said the update would be available March 30. The update fixes a widely reported vulnerability (CVE-2010-1028) that prompted Germany’s CERT to advise Web users to switch to another browser until a fix was made. (My blog post “Germany’s CERT warns against Firefox use” ) Intevydis researcher Evgeny Legerov had found that Wide Open Font Format decoder in Firefox had an integer overflow in its font decompression mechanism. The flaw involved a memory buffer that was too small to handle a downloadable font. Legerov had found that exploiting the vulnerability could crash a victim’s browser making it possible to run arbitrary code on the system. ...

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Smart Aleck Passwords

Published: March 23, 2010 Reading time: 1 min

Älypää, a popular Finnish game and quiz site, announced a database breach late last night. Over 127,000 account names and passwords were leaked. The site has currently suspended access and doesn’t maintain any personal details but Älypää users should determine whether or not they recycle their passwords elsewhere. If so, those accounts are at risk of being hacked. CERT-FI guidelines can be found here. Here’s a list of the top 20 domains on the list: ...

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Using Windows “hosts” file to cut off the help line

Published: March 23, 2010 Reading time: 1 min

We found this interesting and malicious little mechanism. The hosts file on a machine under investigation was modified to redirect the victim’s browser to a well known legitimate site (in this case google.com) whenever he attempted to contact a list of nearly 400 sites. The list was a “Who’s Who” of the anti-malware world – most places where someone with an infected machine would go to get help. The altered hosts file he found contained many lines beginning with ‘#’ followed by gibberish. These would be seen as comments by any browser and ignored. Concealed among the commented lines are lines containing the domain name redirections. When the commented lines are stripped, we find all the listed security related websites being redirected to “209.85.129.99” which is the IP address for google.com. ...

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Attacks on Indian Income Tax Department Continue

Published: March 23, 2010 Reading time: 2 min

We previously reported a phishing attack on the Indian Income Tax Department. Phishing emails boasting of tax refunds were sent to users in an attempt to entice citizens to enter their credentials on a bogus website. Recently, new attacks have been observed in which the phishing website states that taxes can be paid online. As the fiscal year in India draws to an end, more people are rushing to pay taxes before the deadline. ...

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