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2016-08-09 13:00:00 | OnionDog – An Example of a Regional, Targeted Attack (lien direct) | BackgroundBad actors are getting more sophisticated with the techniques they employ, including their ability to target specific industries and geographical regions. OnionDog is a good example of an attack that exploits a vulnerability in an application that is both popular in the target region, and is commonly deployed in the organizations the attackers wish to compromise.The Helios team at 360 SkyEye Labs published a detailed analysis of the OnionDog APT earlier this year, and during the dog-days of Summer (see what I did there?) it seems appropriate to revisit this malware. OnionDog has been around for several years and exploits a vulnerability in Hangul office software, which is a popular Korean-language productivity suite. Hangul software is also widely deployed in South Korean Government agencies and facilities.The group behind OnionDog is the Lazarus Group, exposed by AlienVault and other threat intelligence teams as part of Operation Blockbuster for its targeting of Sony Pictures and a range of other targets.How it WorksOnionDog used various techniques to entice victims to open the malicious attachment. The attachments targeted a range of government agencies and utilities, such as power, water, ports, transit, and rail to lure its victims (see the screenshot of the ‘Investigation Report of the Korean Railway Accident” below). Source: 360 SkyEye LabsThe malware installs a back door to the compromised system, collects and forwards information about the compromised systems to the C&C server, as well as infecting any device attached to the USB drive.Impact on youThe regional nature of OnionDog will likely limit your exposure to this particular version of the threat if you’re not located in South Korea. However, if there is a user of Hangul software on your network, or if someone in your office may have visited an office that uses Hangul software and plugged a device into a compromised system, you may be at risk of data loss. However, although this version of the malware is localized to South Korea, the Lazarus Group could easily choose another popular application to target specific organizations in other countries.How AlienVault HelpsThe AlienVaultâ Unified Security Management (USM)™ platform delivers the essential security capabilities that organizations of all sizes need to detect, prioritize, and respond to threats like OnionDog. The AlienVault Labs team regularly updates the rulesets that drive the threat detection and response capabilities of the AlienVault USM platform, to keep you up to date with new and evolving threats such as OnionDog. The Labs team performs the threat research that most IT teams simply don’t have the expertise, time, budget, or tools to do themselves on the latest threats, and how to detect and respond to them.The Labs team recently updated the USM platform’s ability to detect this new threat by adding IDS signatures to detect the malicious traffic and a correlation directive to link events from across a network that indicate a system compromised by OnionDog. Learn more about the |
Medical | APT 38 | |
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2016-02-24 14:00:00 | Operation BlockBuster unveils the actors behind the Sony attacks (lien direct) | Today, a coordinated coalition involving AlienVault and several other security companies led by Novetta is announcing Operation BlockBuster. This industry initiative was created to share information and potentially disrupt the infrastructure and tools from an actor named the Lazarus Group. The Lazarus Group has been responsible for several operations since at least 2009, including the attack that affected Sony Pictures Entertainment in 2014.Part of our research on this actor was presented at the Kaspersky Security Analyst Summit (SAS) in Tenerife, Spain on February 9th, 2016 as a joint talk between AlienVault and Kaspersky’s Global Research and Analysis Team.In the research that AlienVault and Kaspersky collaborated on, we attributed several campaigns to this actor. Armed with some of the indicators that US-CERT made public after the Sony attack, we continued to analyze different campaigns in 2015 that we suspected were being launched by the same actor. Eventually we were also able to attribute previous activity to the same attackers including:Sony Pictures Entertainment - 2014Operation DarkSeoul - 2013Operation Troy - 2013Wild Positron / Duuzer - 2015Besides several campaigns were the Lazarus group has utilized wipers to perform destructive attacks, they have also been busy using the same tools to perform data theft and cyber espionage operations.Today, as part of the Operation BlockBuster release, we want to share some of our findings and TTP’s from the Lazarus Group that allowed us to link and attribute all the campaigns and tools into the same cluster of activity. We highly recommend that you read the comprehensive report Novetta published today that includes details on the project’s scope and the more than 45 malware families identified, and includes signatures and guidance to help organizations detect and stop the group’s actions.Encryption/Shared keysOne of the key findings that gave us the opportunity to link several families to the same actors was finding a dropper that the attackers use. This dropper contains a compressed resource (ZIP) with the name “MYRES” that is protected by a password. The attackers have reused the same password in different occasions and we were able to find droppers containing different families used by the group. This actor also reuses the code libraries they utilize to perform RSA encryption. We were also able to find the exact same public key in multiple variants.Batch scriptsThis actor often uses BAT files that share the same skeleton in order to delete the initial files after infection. We have seem them reuse this technique across multiple droppers and payloads.Obfuscation functionsThe Lazarus Group uses a few different methods to obfuscate API functions and dynamically load them. One of them consist on using a simple XOR schema. |
Medical | Yahoo APT 38 |
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