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    Archive for the ‘Malware’ Category

    The DYRE/Dyreza banking malware is back with a new infection technique: we observed that it now hijacks Microsoft Outlook to spread the notorious UPATRE malware to target an expanded list of targeted banks. Last October 2014 we observed a hike in UPATRE-DYRE malware infections brought by the CUTWAIL spambot, a pattern we observed was similar to the propagation technique used in the ZeuS variant, Gameover. DYRE’s recent design and structure overhaul includes an improvement in its propagation and evasion techniques against security ...

    In the middle of my research on the remote access Trojan (RAT) known as “njrat” or “Njw0rm”, I stumbled upon, a site that disguises itself as a site for “IT enthusiasts” but actually hosts various downloaders, different types of spyware, and RATs. I explored the site and found that they host malware under the “Protection Devices” section in their website. Under this section was a forum written in Arabic, which may suggest that an Arabic-speaking country is behind it. Figure ...

    Posted in Malware |

    Last July we came across a crypto-ransomware variant known as Critroni or Curve-Tor-Bitcoin (CTB) Locker. We observed recent improvements to the CTB malware, which now offer a "free decryption" service, extended deadline to decrypt the files, and an option to change the language of the ransom message. These new variants also demand payment of 3 BTC (around $USD 630), while older ones seen in July only charged 0.2 BTC, or $USD 24. Along with these improvements, we are also seeing a spike ...

    2014 became the year that placed PoS (point-of-sale) threats in the spotlight. Make no mistake—PoS threats have existed for years. However, the Target data breach last January was the first incident that made the general public notice this threat. 2014: the Year of PoS Malware While the Target breach may have been the first PoS-related incident of 2014, it soon became clear that it wouldn’t be the last. By the end of the third quarter of the year, six new variants of ...

    Posted in Malware |

    Hacks in Taiwan (HITCON), a security conference hosted in that country, has discovered an attack involving several online games. Official releases of two popular online games were found to be compromised, downloading malware onto computers. HITCON worked with Trend Micro to provide a clean-up tool to possible victims of the attack. Trend Micro was then able to coordinate with the affected game provider to help address the incident. Compromised Official Releases The games that were used in the attack were online games League of Legends ...


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