Kaspersky Lab analyses February's spam
February's love-themed malicious spam was dominated by Trojans, as the cybercriminals' mass mailings targeted credulous users with a Trojan-Dropper. The Trojan installs two malicious programmes on the system - one is spyware that steals all document files (*. Docx, *. Xlsx, *. Pdf) from the computer and sends them to a specific mailbox; another is IRC-bot/worm called ShitStorm, which can carry out DDoS attacks on websites and spread copies of itself via MSN and P2P services. If recipients respond to this sort of email, their computer can easily become part of a botnet.
Ransomware
In addition to Trojan spyware, this month's malicious spam included ransomware - a type of malware that blocks the user's computer and then demands money to unblock it. The explicit photos also turned out to be malicious programmes and among them was the Andromeda back door that allows cybercriminals to control a compromised computer secretly.
Yet another malicious program imitated fake notifications from major social networking sites. Messages allegedly sent on behalf of Facebook informed recipients that a lot had happened on friends' news feeds since they last visited the site and they were prompted to open the attached archive to find out more. The archive contained the back door from the aforementioned Andromeda family.
Meanwhile, "Nigerian" scammers could not pass up the opportunity to exploit the situation in Ukraine and the tragic events that followed in order to cheat users out of their money. They cited some familiar stories about unfortunate tourists in Kiev who had all their money stolen, followed by a request for financial assistance.
The share of spam in email traffic:
Sources of spam:
Phishing:
"Phishing emails that use the names of major financial and e-payment organisations from different countries are being actively spread by scammers to steal personal financial information. A successful attack usually gives the phishers full access to the victim's personal account on the banks' website," said Tatyana Shcherbakova, senior spam analyst of Kaspersky Lab.
The full report is available at: www.securelist.com