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    5
    Jul 11

    A Futures Market for Computer Security

    Information security researchers from academia, industry, and the U.S. intelligence community are collaborating to build a pilot “prediction market” capable of anticipating major information security events before they occur.

    A prediction market is similar to a regular stock exchange, except the “stocks” are simple statements that the exchange’s members are encouraged to evaluate. Traders will buy and sell “shares” of a stock based on the strength of their confidence about the future outcome—with an overall goal of increasing the value of their portfolios, which will in turn earn them some sort of financial reward. Traders may choose to buy or sell additional shares of a stock, and that buying and selling activity pushes the stock price up or down, just as in a real market.

    This is an excerpt from a story I wrote for MIT Technology Review. Read the rest of the piece here.


    24
    Jun 11

    ChronoPay Co-Founder Arrested

    Russian authorities on Thursday arrested Pavel Vrublevsky, co-founder of ChronoPay, the country’s largest processor of online payments, for allegedly hiring a hacker to attack his company’s rivals.

    An undated photo of Vrublevsky

    Vrublevsky, 32, is probably best known as the co-owner of the Rx-Promotion rogue online pharmacy program. His company also consistently has been involved in credit card processing for — and in many cases setting up companies on behalf of — rogue anti-virus or “scareware” scams that use misleading PC security alerts in a bid to frighten people into purchasing worthless security software.

    Russian state-run news organizations are reporting that Vrublevsky was arrested on June 23. Financial Times reporter Joe Menn writes that Vrublevsky was ordered held without bail and a hearing was set for a month’s time.

    Continue reading →


    9
    Jun 11

    Pay-Per-Install a Major Source of Badness

    New research suggests that the majority of personal computers infected with malicious software may have arrived at that state thanks to a bustling underground market that matches criminal gangs who pay for malware installs with enterprising hackers looking to sell access to compromised PCs.

    One of the PPI programs profiled in the study.

    Pay-per-install (PPI) services are advertised on shadowy underground Web forums. Clients submit their malware—a spambot, fake antivirus software, or password-stealing Trojan—to the PPI service, which in turn charges rates from $7 to $180 per thousand successful installations, depending on the requested geographic location of the desired victims.

    The PPI services also attract entrepreneurial malware distributors, or “affiliates,” hackers who are tasked with figuring out how to install the malware on victims’ machines. Typical installation schemes involve uploading tainted programs to public file-sharing networks; hacking legitimate websites in order to automatically download the files onto visitors; and quietly running the programs on PCs they have already compromised. Affiliates are credited only for successful installations, via a unique and static affiliate code stitched into the installer programs and communicated back to the PPI service after each install.

    In August 2010, researchers at the University of California, Berkeley, and the Madrid Institute for Advanced Studies in Software Development Technologies infiltrated four competing PPI services by surreptitiously hijacking multiple affiliate accounts. They built an automated system to regularly download the installers being pushed by the different PPI services.

    The snippet above is the introduction to a story I wrote for MIT Tech Review. Read the whole piece at this link.

    Ads for Monocash, a 3-year-old PPI program that distributes the Zlob malware


    5
    May 11

    LastPass Forces Users to Pick Another Password

    LastPass.com, a free password management service that lets users unlock access to all of their password protected sites with a single master password, is forcing all of its approximately 1.25 million users to change their master passwords after discovering that intruders may have accessed the company’s user database.

    In an alert posted to the company’s blog late Wednesday, LastPass said that on Tuesday morning it spotted a “traffic anomaly” — unexplained transfers of data — from one of the company’s databases. From that blog entry:

    “Because we can’t account for this anomaly either, we’re going to be paranoid and assume the worst: that the data we stored in the database was somehow accessed. We know roughly the amount of data transfered [sic] and that it’s big enough to have transfered people’s email addresses, the server salt and their salted password hashes from the database. We also know that the amount of data taken isn’t remotely enough to have pulled many users encrypted data blobs.

    If you have a strong, non-dictionary based password or pass phrase, this shouldn’t impact you – the potential threat here is brute forcing your master password using dictionary words, then going to LastPass with that password to get your data.Unfortunately not everyone picks a master password that’s immune to brute forcing.

    To counter that potential threat, we’re going to force everyone to change their master passwords.”

    LastPass consists of a core software application that sits on user machines, and a browser plug-in. Passwords are stored on the user’s system, so that no one at LastPass can access the information.  What the company does keep is an encrypted blob of gibberish data that is generated by taking the user’s master password and email address and hashing the two. Any sensitive data saved to an account is secured by the encryption key on the user’s system and then sent to LastPass. Since the user’s encryption key is locally created each time users submit their master password and email to LastPass, all that the company stores is users’ encrypted data.

    Continue reading →


    27
    Apr 11

    FBI: $20M in Fraudulent Wire Transfers to China

    The Federal Bureau of Investigation warned this week that cyber thieves have stolen approximately $20 million  over the past year from small to mid-sized U.S. businesses through a series of fraudulent wire transfers sent to Chinese economic and trade companies located near the country’s border with Russia.

    The FBI said that between March 2010 and April 2011, it identified twenty incidents in which small to mid-sized organizations had fraudulent wire transfers to China after their online banking credentials were stolen by malicious software. The alert was sent out Tuesday in cooperation with the Internet Crime Complaint Center and the Financial Services Information Sharing and Analysis Center (FS-ISAC), an industry consortium. The alert notes that actual victim losses are $11 million, suggesting that victim banks were able to claw back some of the fraudulent transfers.

    The FBI says it doesn’t know who is behind these fraudulent transfers, but that the intended recipients are companies based in the Heilongjiang province of the People’s Republic of China, and that these firms are registered in port cities that are located near the Russia-China border. The agency says the companies all use the name of a Chinese port city in their names, such as Raohe, Fuyuan, Jixi City, Xunke, Tongjiang, and Donging, and that the official name of the companies also include the words “economic and trade,” “trade,” and “LTD”. The recipient entities usually hold accounts with a the Agricultural Bank of China, the Industrial and Commercial Bank of China, and the Bank of China.

    From the advisory (PDF):

    “In a typical scenario, the computer of a person within a company who can initiate funds transfers on behalf of the U.S. business is compromised by either a phishing email or by visiting a malicious Web site. The malware harvests the user’s corporate online banking credentials. When the authorized user attempts to log in to the user’s bank Web site, the user is typically redirected to another Web page stating that the bank Web site is under maintenance or is unable to access the accounts. While the user is experiencing logon issues, malicious actors initiate the unauthorized transfers to commercial accounts held at intermediary banks typically located in New York. Account funds are then transferred to the Chinese economic and trade company bank account.”

    Continue reading →


    18
    Feb 11

    KrebsOnSecurity.com Wins Award

    KrebsOnSecurity.com was honored at the annual Social Security Blogger Awards at the RSA security conference in San Francisco this week. Judges and voters picked this blog as the one they thought best represents the security industry today.

    Among the four other finalists in this category were some fairly big names (in no particular order):

    * Threat Post
    * CSO Online Blog
    * Threat Level (Wired)
    * Schneier On Security

    This is the second year in a row KrebsOnSecurity.com was recognized at the blogger awards gathering: Last year, it was named the “Best Non-Technical Security Blog“. Thanks to the judges, voters and to all you readers who make the discussion here so much more interesting, informative and worthwhile!

    Sophos’s Naked Security blog won for “Most Educational”; Veracode’s Zero Day Labs won for “Best Corporate Security blog”; “Best Podcast” went to Pauldotcom; the Securosis blog earned the “Most Entertaining” award.

    Below is a great video from Chris Eng who won the “The single best security blog post of the year” award, with the following text-to-movie clip on what it takes to be an authentic “thought leader” in the information security space:


    16
    Feb 11

    Having a Ball with ATM Skimmers

    On February 8, 2009, a customer at an ATM at a Bank of America branch in Sun Valley, Calif., spotted something that didn’t look quite right about the machine: A silver, plexiglass device had been attached to the ATM’s card acceptance slot, in a bid to steal card data from unsuspecting ATM users.

    But the customer and the bank’s employees initially overlooked a secondary fraud device that the unknown thief had left at the scene: A sophisticated, battery operated and motion activated camera designed to record victims entering their personal identification numbers at the ATM.

    The camera was discovered more than a day later by a maintenance worker who was servicing the ATM. The device, pictured below with the boxy housing in which it was discovered, was designed to fit into the corner of the ATM framework and painted to match.

    The self-contained camera and box attached to the Bank of America ATM

    The ATM pictured on the right below is shown with the card skimmer and video camera attached (click the image for a slightly larger look).

    California police say the video camera and skimmer were installed by the person pictured below. The entire scam ran only for about three hours, and was reported about 11 AM. Police recovered both the skimmer and video camera, so no customer or bank losses ensued as a result of the attack. Meanwhile, the crook responsible remains at large.

    The first customer to use the compromised ATM.

    Continue reading →


    4
    Feb 11

    ZeuS Source Code for Sale. Got $100,000?

    Late last year, online crime forums were abuzz with talk that development of the world’s most notorious banking Trojan — ZeuS — was being retired, after its maker handed the malware’s secret blueprints to a rival developer. The recipient of those plans — the author of the SpyEye Trojan– has been hard at work on a malware strain that blends the two malware families. But new evidence suggests that the source code for the latest ZeuS version may have also been given or sold to a third party who is now reselling it to the highest bidder in the criminal underground, a development that could soon guarantee the production of a whole new ZeuS lineage.

    Sources say the ZeuS author — known variously as “Slavik” and “Monstr” on criminal forums — gave the SpyEye author Gribodemon stewardship over the ZeuS code base, on the condition that Gribodemon agreed to provide ongoing support for existing ZeuS clients, a sizable user base that demands considerable care and attention. Sources also believe Slavik may have separately sold the code itself, ostensibly to the same individual shown in the screen shot below.

    Established crime forums are built upon reputation, which is earned over a period of time by points awarded from other members for positive or negative transactions — much like eBay’s buyer and seller feedback system. The solicitation in the above screen shot is unlikely to be a fake: It indicates that the seller has been a member of this particular vetted crime forum since June 13, 2009, and has 18 positive reputation points and zero negative.

    Continue reading →


    28
    Jan 11

    Microsoft: Exploit Published for Windows Flaw

    Microsoft warned today that hackers have published instructions for attacking a previously unknown security hole in all versions of Windows that could be exploited to siphon user data or trick users into installing malicious code.

    Redmond published an advisory about a vulnerability in the way Windows handles MHTML code that could let attackers run Javascript code if the user is browsing a malicious site using Internet Explorer. As Wolfgang Kandek, chief technology officer at Qualys notes, that means that IE is the only known exploit vehicle for this flaw, and that other browsers such as Firefox and Chrome are not affected in their default configuration because they don’t support MHTML without the installation of specific add-ons.

    Microsoft said it may issue a patch to fix the flaw, but that in the meantime IE users who are concerned about this threat can use a supplied “FixIt” tool to help shore up the way Windows handles MHTML documents. The enable that fix, visit this link and click the FixIt icon.


    21
    Jan 11

    Ready for Cyberwar?

    Amid all of the media and public fascination with threats like Stuxnet and weighty terms such as “cyberwar,” it’s easy to overlook the more humdrum and persistent security threats, such as Web site vulnerabilities. But none of these distractions should excuse U.S. military leaders from making sure their Web sites aren’t trivially hackable by script kiddies.

    Security vendor Imperva today blogged about a hacker who claims to have access to and control over several top dot-gov, dot-mil and dot-edu Web sites. I’ve seen some of the back-end evidence of his hacks, so it doesn’t seem like he’s making this up. Perhaps out of deference to the federal government, the Imperva folks blocked out the best part of that screen shot — the actual names of the Web site domains that this hacker is selling. For example, the hacker is advertising full control and root access to cecom.army.mil, a site whose stated purpose is “to develop, acquire, provide and sustain world-class…systems and Battle Command capabilities for the joint warfighter.” It can be yours, for just $499 (sorry, no credit cards accepted; only the virtual currency Liberty Reserve).

    Here is an unredacted (well, mostly) shot of that site:

    Continue reading →