Advice

The H-Online: A list with several million passwords belonging to users of the music community site Last.fm has been posted on the internet. The site owners have posted a statement saying that the company is investigating the leak and that all users of the service should change their passwords immediately. This is the third major compromise of a popular web site’s passwords in as many days. The H’s associates at heise Security are in possession of a list containing approximately 2.5 million password hashes. Like the recently leaked data from eHarmony, these are unsalted MD5 hashes that are trivial to crack in today’s world of fast CPU and GPU hardware and specialised techniques such as using rainbow tables. At least one million of these hashes have already been cracked and the clear text passwords have also been posted on the internet. The hashes that were leaked from LinkedIn were generated using the SHA-1 algorithm. ...

H-Online: Internet forums are currently circulating a list containing over six million password hashes which allegedly originate from LinkedIn. The passwords are being cracked collaboratively with about 300,000 passwords already published as plaintext. The list contains pure SHA1 hashes with no name or email addresses. If decrypted, the passwords will not easily give access to an appropriate account. However, it is probable that the person who captured the hashes also has the corresponding email addresses. In an initial sampling, The H‘s associates at heise Security didn’t find any known LinkedIn passwords in the list, but with over 160 million members that doesn’t mean a lot. The already cracked passwords often contain “linked” or even “linkedin” in the form, for example, of “lawrencelinkedin”. This suggests that the passwords actually come from the LinkedIn social network. However, this has not yet been confirmed. ...

H-Online Says: A faulty update for Avira‘s paid-for anti-virus software blocks harmless processes and may in some cases stop computers from booting. The update results in the ProActiv behavioral monitoring component becoming oversensitive in its treatment of executable files. According to user reports, ProActiv blocks trusted system processes such as cmd.exe, rundll32.exe, taskeng.exe, wuauclt.exe, dllhost.exe, iexplore.exe, notepad.exe and regedit.exe. In some cases this results in Windows failing to boot properly. It also appears to be blocking non-OS applications such as Microsoft Office, the Opera web browser and Google’s Updater program. ...

Symantec Connect: Symantec is intercepting a resurgence of spam attacks on popular brands. Spam messages that are replicas of the Wikipedia email address confirmation alert are the new vector for the present. The said spam messages pretend to be originating from Wikipedia, and are selling meds, with the following subject line: “Subject: Wikipedia e-mail address confirmation”. The spoofed Wikipedia page is a ploy to give legitimacy to the sale of meds online. The embedded URL in the message navigates to a fake online pharmacy site that is dressed up as a Wikipedia Web page. Furthermore, to give the email a legitimate look, the spammer has added the recipient’s IP address in the body of the spam mail. Needless to say this IP does not belong to the user. ...

The H-Online: Online forums have, for some time, apparently been the target of hackers who inject additional code. However, the attackers aren’t interested in publishing cool slogans or political messages, they’re looking for money. They steal Google traffic from the forums and exploit this traffic via ads. Their main targets appear to be forums that are based on the vBulletin software. Unlike the “Look how cool I am” crackers, these attackers have very discreet working methods. They hide their code deeply within the system and ensure that their redirections don’t attract much attention. Only users who visit forum pages for the first time via a search engine such as Google are redirected to a url123.info URL. This site initially displays a strange blocking alert (“Access denied”) followed by some arbitrary text and then loads a full-page ad by InfinityAds. The ads are probably a direct source of income for the intruders even though each ad is only worth a few pennies. However, as some forum operators have reported that their traffic has dropped by more than 70 per cent, and the phenomenon seems to be a rather wide-spread one, the overall yield is likely to be considerable. ...

Symantec Connect: Phishers are constantly developing new strategies in an effort to trick end users. In April 2012, phishers created sites spoofing the Apple brand with fake offers for Apple discount cards. In this phishing attack, customers were targeted by region: namely, the UK and Australia. The phishing sites mimicked the webpage of Apple and prompted customers for their Apple ID. The phishing page stated the customer’s long-term loyalty toward the brand gave them eligibility for an Apple discount card as a reward. Upon entering an Apple ID and clicking the “Next” button, the customer was redirected to a page that asked for more confidential information: ...

Cross posted from GFI, Sunbelt Blog: There’s not a day when we don’t see a new scam or hoax—yes, even the old ones—being proliferated on Facebook. I’ve seen both today. Let’s take a quick look at each one, shall we? First off, the scam: The screenshot above is a post generated by the “Sexappeal Meter” app that have spread within the social network. Clicking the “How much Sexappeal you have” link, or sometimes a bit.ly shortened URL, leads users to a page where it requests for permission just like any normal app. Allowing the app access to user profile, however, leads to two succeeding survey scam pages and, eventually, to a page where one can download a browser toolbar. ...

Symantec Connect: In recent years, scammers have flocked towards social networking sites as they have grown and made it easier to access a large number of potential eyeballs to convert into dollars. Brands have found value in leveraging social media to know what their customers are talking about, so, naturally, scammers are doing the exact same thing. Free iPads and iPhones Every time Apple unveils a new iPad or iPhone, you can bet there are scammers out there trying to leverage the announcement for financial gain. In the days leading up to and after the announcement of the new third-generation iPad, Twitter users who tweet about the new tablet most likely will receive some targeted Twitter replies from scammers offering the new device for free: ...

Sunbelt: Be wary of emails claiming to be from AICPA – as per their alert here, these are not real and any mention of “unlawful tax return fraud” is just a bait to convince the end-user to open up a malicious attachment (in this case, a .doc file although there are rogue PDF files in circulation too). As with many of the malicious spam campaigns doing the rounds at the moment, this one will use the Blackhole exploit kit to serve up zbot from multiple compromised domains. Worse, a Sakura kit (typical example here) will download Sirefef / ZeroAccess , which as we’ve seen elsewhere is not a good thing to have on your system. ...

SophosLabs: Have you seen the news? Maybe your friends have shared it with you. Apparently, Facebook is going to shut down on March 15th, 2012. Mark Zuckerberg has reportedly found running the site just too stressful. Here’s the link that many Facebook users have been sharing with each other. Some worried Facebook users have even been sharing this photograph of a news report about the claimed closure of the world’s most popular social network: ...