Posts tagged phishing

In their latest “Weekly Threat report”,VeriSign’s iDefense Intelligence Operations Team has profiled the underground market proposition of someone claiming to have 1.5 million compromised Facebook accounts available for sale.

The pricing method is based on the number of contacts per compromised account, presumably with the idea to allow easier spreading of related malicious content across Facebook.

Here’s an excerpt from the report, and a brief FAQ on the underground ad.

• “On Feb. 10, 2010, (cybercriminal) stated that he or she is selling 1.5 million compromised Facebook accounts, in bulk quantities, belonging to users in various countries. The price per 1,000 accounts varies based upon the number of friends and contacts that each account possesses. For a purchase of compromised accounts containing 10 contacts or fewer, a buyer must pay $25 per 1,000 accounts. A purchase of compromised accounts containing 10 or more contacts requires a buyer to pay $45 per 1,000 accounts. Accounts containing zero contacts are also available for bulk purchasing from (cybercriminal), at the cost of $15 per 1,000 accounts. The prices of these accounts are presumably in USD or the equivalent amount in some form of electronic currency.”

Sometimes, there’s no honor among cybercriminals (Phishers increasingly scamming other phishers), just like there isn’t among “real life” thieves.

From the distribution of backdoored web interfaces to web malware exploitation kits, to the actual “binding” of additional malware to the original release, sophisticated or at least cybercriminals with experience, have realized that there are thousands of potential cybercriminals that could unknowingly start working for them. The process of “cybercriminals attempting to scam novice cybercriminals” demonstrates just how vibrant the ecosystem has become these days.

With a huge percentage of the underground marketplace driven by reputation, this is exactly what this particular seller of Facebook data is missing. Moreover, with quality assurance now an inseparable part of the cybercrime ecosystem, the seller is not just skipping the time frame in between which the accounts were compromised, he is also not mentioning have many of them are actually verified as working.

These, and several other factors make me skeptical on the quality of this underground proposition.

If we consider that the cybercriminal’s claims to be true, how did he manage to obtain 1.5 million Facebook accounts?

The ad is clearly stating that they are accounts with contacts, meaning they’re compromised, and other which have zero contacts, meaning they’ve been automatically generated by outsourcing the CAPTCHA-solving process to international teams specializing in the process.