Articles
Vulnerability Spotlight: Lhasa Integer Underflow Exploit
Talos is disclosing the discovery of vulnerability TALOS-2016-0095 / CVE-2016-2347 in the Lhasa LZH/LHA decompression tool and library. This vulnerability is due to an integer underflow condition. The software verifies that header values are not too large, but does not check for a too small header l…
SamSam: The Doctor Will See You, After He Pays the Ransom
Cisco Talos is currently observing a widespread campaign leveraging the Samas/Samsam/MSIL.B/C ransomware variant. Unlike most ransomware, SamSam is not launched via user focused attack vectors, such as phishing campaigns and exploit kits. This particular family seems to be distributed via compromisi…
Vulnerability Spotlight: Apple OS X Graphics Kernel Driver Local Privilege Escalation Vulnerability
Piotr Bania of Cisco Talos is credited with the discovery of this vulnerability. Cisco Talos, in conjunction with Apple’s security advisory issued on Mar 22, is disclosing the discovery of a local vulnerability in the communication functionality of the Apple Intel HD3000 Graphics kernel drive…
Malware Word Search: Identifying Angler’s Dictionary
This post authored by Steve Poulson with contributions from Nick Biasini. Exploit kits are constantly evolving and changing. We recently wrote about some subtle Angler changes but then Angler changed drastically on March 8. In this blog post, we will briefly cover these changes, examining different…
Teslacrypt 3.0.1 – Tales from the Crypt(o)!
This post is authored by Andrea Allievi and Holger Unterbrink Executive Summary Ransomware is malicious software that is designed to hold users’ files (such as photos, documents, and music) for ransom by encrypting their contents and demanding the user pay a fee to decrypt their files. Typical…
Microsoft Patch Tuesday – March 2016
Patch Tuesday for March 2016 has arrived. Today, Microsoft has released their monthly set of security bulletins designed to address security vulnerabilities within their products. This month’s release contains 13 bulletins addressing 44 vulnerabilities. Five bulletins are rated critical and address…
Angler Attempts to Slip the Hook
This post was authored by Nick Biasini with contributions from Joel Esler and Melissa Taylor Talos has discussed at length the sophistication of the Angler exploit kit. One thing that always makes Angler stand apart is the speed with which they develop and implement new techniques. Whether its doma…
Tax Scams Gone International
Tax time in the US is quickly approaching. Everyone should be on the lookout for scams that are designed to trick you out of your money and personal information. The IRS is warning users about an increase in the number of email scams being used this year. However, these attacks are no longer limited…
Operation Blockbuster: Coverage for the Lazarus Group
The threat landscape is in constant flux. In many situations, the entire security community must work together to combat some of today’s larger threats. Novetta researched a group of malware families that all appear to be related to the same group of threat actors dubbed “The Lazarus Group” (Group 7…