Alert for ransomware that bypassed endpoint protection

• Raccine

  6 937 3.5 C++

  A Simple Ransomware Vaccine

Back to your original question, assuming a conventional AD-centric Windows environment, I would recommend starting with AppLocker to whitelist approved apps and host-based firewall to whitelist approved connections, enable detailed powershell logging, monitor for east-west wmic/SMB/RDP connections (monitor at host level and at network level), and use a tool like RITA to detect beaconing activity. Also consider blocking DOH, retaining DNS logs, and if you don't have a well-tuned EDR/XDR and SIEM, deploy sysmon and use WEF/WEC to centralize logs (SwiftOnSecurity and Olaf Hartong on github have very good starting points for sysmon configs and Microsoft's MSLab github repo has a good scenario for testing sysmon/WEF/WEC with alert recommendations from NSA and Palantir). If you have no centralized logging/analysis/alerting in place AND a managed solution like SecureWorks or a guided deployment of Defender are not realistic, consider starting with Security Onion. If your organization is in a critical infrastructure sector, you should definitely look into the risk and vulnerability assessment and no-cost cyber hygiene services offered by CISA (see https://www.cisa.gov/cyber-resource-hub). Also, have you considered testing/deploying Raccine? https://github.com/Neo23x0/Raccine

• awesome-threat-detection

  5 3,344 2.6

  ✨ A curated list of awesome threat detection and hunting resources 🕵️‍♂️

Some additional resources can be found at https://github.com/0x4D31/awesome-threat-detection

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

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