The most sophisticated attacks introduce additional layers of obfuscation. Malware has been observed fetching a list of C2 servers from GPS coordinates embedded in photos and from comments on Instagram.
This makes it far more difficult to disrupt than a centralized model but can also make it more difficult for the attacker to issue instructions to the entire botnet. P2P networks are sometimes used as a fallback mechanism in case the primary C2 channel is disrupted. A number of unusual techniques have been observed for issuing instructions to infected hosts. Hackers have made extensive use of social media platforms as unconventional C2 platforms because they are rarely blocked. A project called Twittor aims to provide a fully functional command and control platform using only direct messages on Twitter.
C2 traffic can be notoriously difficult to detect, as attackers go to great lengths to avoid being noticed. In fact, many large-scale cyber attacks were initially discovered when researchers noticed C2 activity. Here are a few general techniques for detecting and stopping command and control traffic in your own network:.
Many organizations pay little attention to traffic exiting their network, focusing instead on threats contained in incoming traffic. For example, limiting outbound DNS requests to only servers that the organization controls can reduce the threat of DNS tunneling. DNS filtering services can also be used to help prevent C2 callbacks to suspicious or newly registered domains. In some cases, threat hunting teams will go so far as to manually inspect packet dumps using a tool like Wireshark or tcpdump.
Collecting log files from as many sources as possible is vital when hunting for signs of command and control traffic. Often, close analysis is needed to distinguish between C2 traffic and legitimate applications. Security Analysts may need to look for unusual patterns, examine the payloads of seemingly benign HTTPS or DNS requests, and perform other types of statistical analysis.
The greater volume of information the analyst or threat hunter has to work with, the better. Remote logging and SIEM solutions can aid in this task. The whole point of maintaining a command and control infrastructure is to perform some specific action like accessing important files or infecting more hosts. This is exactly the approach that Varonis Edge takes, giving you the deep visibility required to spot everything from insider threats to APT groups. Now it can be. Intuitive service desk Categorize instantly, manage prioritizations and track time to ease workload.
Self-service portal and catalog. CMDB and asset management. Automated workflows and processes Escalate, manage workflows, assign tasks, or create and approve custom triggers. Workflows and automation. Seamless integrations Connect your favorite apps with APIs and webhook triggers. Empower your service delivery Enhance performance and automate workflows for simple or complex processes without a single line of code.
Boost your operations Implement best practices fast to improve agility, drive change management and reduce downtime. Delight your customers Prioritize and centralize requests through a customizable service catalog and a powerful self-service portal, allowing you to deliver higher SLAs.
Once on the portal, customers can help themselves and discover additional content related to their initial inquiry. Knowledge base articles, frequently asked questions FAQs , and how-to content are key components of many self-service systems that help customers help themselves.
Self-service portal features and requirements vary from company to company, but the benefits of using one are largely the same: faster service at a lower cost, while giving your service reps more time to work on higher-order tasks.
Maintaining help desks and conventional customer service teams means investing significant resources into hiring, training, and supporting staff. Those staff may be highly skilled at untangling complex technical problems or calming down irate clients, but if those situations only account for a small fraction of the calls they field every day, are you getting the best agent utilization possible?
Well-designed portals that provide useful information and expedite service are a valuable tool for keeping internal users productive and external customers happy. Companies are increasingly employing distributed workforces. This increase in distributed workforces means having a way for users to request IT services around the clock is more valuable now than ever.
A self-service portal allows remote users to log their requests any time of day, even if it is the middle of the night for your help desk staff. Then, the portal can guide them through resolving the issue independently or getting their request routed to the proper service team to see it as soon as possible. Creating single points of contact is one of the defining best practices of IT service management.
Self-service portals are the most efficient possible single point of contact because they enable your users to potentially resolve a wide range of issues on their own before they even need to reach someone at your service desk. Because your portal tracks everything users and agents enter into it, you accumulate valuable information about problem types, assets, users, and performance trends.
You can use this data to modify your service desk to be even more effective in the future. Instead, they are perfectly happy to resolve problems independently.
That can lead to a reduction in service tick volumes. Reduced volume allows your remaining service agents to focus on truly meaningful issues.
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