Pro Tip : Mobile device antivirus or antimalware is unnecessary for most users and tasks, including reading PDF files. Focus on keeping your desktop or laptop secure and updated. The reason that software updates are provided is mainly to improve functionality and patch identified vulnerabilities in the currently-installed software.
Be careful when following through with any notifications about app updates. Instead of following links to update your PDF reader from a third-party website, popup notification, or a sent link, update your PDF editor or reader from within the application itself. Alternatively, visit the official website and download the latest version. This strategy can only shield you from infections that are manipulating already-known viruses and vulnerabilities and not newly-developed ones.
This strategy was introduced by Adobe in when they experienced threats through malicious alterations of JavaScript code in files. All your software needs to be updated so that malware rarely slips through any cracks. Sometimes, the security measures of your browser or PDF reader might be insufficient.
Your antivirus scanner may also not catch malware before you open a PDF. Your left depending on your operating system and other software to protect itself. The more security measures you have, the higher your chances are of protecting your system holistically. The first step to cybersecurity is keeping all your software updated.
Another way to start our investigation would be taking advantage of VT Graph. This would put on the table all the elements related to the IOCs we have to start our investigation with, giving us a good idea of the dimension and of the elements of interest. The graph helps us visualize what both URLs share in common, as well as a bunch of additional ones that also share the same tracker ID. In particular, there are a couple of common javascript libraries detected as malicious by several AV vendors that look interesting for our investigation.
We can open their VirusTotal report in the links below:. We can simply click on this string to find any other files that include the very same content:. This results in hundreds of libraries that were used by attackers, most likely in this very same campaign. Displaying a LARGE number of elements in a graph is probably not the best idea, but nevertheless this is how it looks like:.
This gives us a very quick idea on how clustered this campaign is. We can pivot all this data to obtain the full infrastructure used in the campaign. For large automated processes like this one, we also recommend using our API or vt-client. Having a large malware database creating relationships among all indicators and allowing pivots using any of them has its advantages.
Visualizing information is also one of the most powerful methods to quickly understand what is most relevant from the data you are working with, allowing you to quickly focus on the most important elements.
Both methods shown in this post are some ideas to use when tracking brandjacking or any other fraudulent activity, if you have any other favorite methods you use for your investigations and you want to share with us please do not hesitate to contact us. Happy hunting! One of the most usual use cases for integrating Threat Intelligence into your security stack revolves around enriching threat data.
This helps incident responders, SOC analysts and threat intel teams properly assess how bad the situation is and what to do next. Unfortunately, many times the data we use for alert triaging is too simplistic. Threat intelligence should be compliant, actionable, relatable and easy!
But also provide the full needed context when needed. In our previous post we introduced VT Augment as our solution to help integrate VirusTotal full contextual data into 3rd-party products. Swimlane was one of the first to integrate VT Augment into their solution, and today we want to discuss how to leverage such integrations into your day to day operations.
Orchestration, automation and response SOAR capabilities are adopted and required in most security stacks. They allow to automate common tasks such as enriching threat alerts, and to also automate the response when integrating with additional tools.
For the examples in this post, we will be using Swimlane, which integrates VirusTotal. A typical case would be automating the answer provided when facing suspicious indicators hash, URL, IP or domain showing up in our detection systems.
For instance, a first simple approach for quick triage would be we creating a workflow based on the number of AV detections just to make sure the incident will be automatically remediated before proceeding with a deeper investigation, if needed:. It could be that these first signals are not strong enough to make an educated decision.
Analyst would need to have additional context which in this case is provided by VT Augment. The following capture shows how VirusTotal enriches the domain information available for the analyst, showing IPs it resolved, detected URLs and Whois information, among others:. Depending on the type of IOC there will be different information available.
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