MegaplanIT

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We specialize in over 48 technically advanced cybersecurity and compliance services designed to protect cardholder and other sensitive data and secure in-scope networks, systems, and website applications.

Full Spectrum

Solutions

We specialize in over 48 technically advanced cybersecurity and compliance services designed to protect cardholder and other sensitive data, secure in-scope networks, systems, and website applications.

Managed Security Solutions >

Compliance Assessments>

Security Testing >

Consulting Services >

Customer Reviews

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Who We Are

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Managed Security Solutions >

Powerful, optimized SIEM running 24/7/365.

Real-time active threat intelligence. Rapidly find and contain intrusions.

Powerful, optimized SIEM running 24/7/365.

Track & Respond To Suspicious Activity In Your Network Traffic

Empower your incident response and security operations functions with real-time active threat intelligence.

Full Spectrum

Solutions

We specialize in over 48 technically advanced cybersecurity and compliance services designed to protect cardholder and other sensitive data, secure in-scope networks, systems, and website applications.

Managed Security Solutions >

Compliance Assessments>

Security Testing >

Consulting Services >

Customer Reviews

we are grateful to receive their feedback on our service.

Who We Are

we are grateful to receive their feedback on our service.

Managed Security Solutions >

Powerful, optimized SIEM running 24/7/365.

Real-time active threat intelligence. Rapidly find and contain intrusions.

Powerful, optimized SIEM running 24/7/365.

Track & Respond To Suspicious Activity In Your Network Traffic

Empower your incident response and security operations functions with real-time active threat intelligence.

Full Spectrum

Solutions

We specialize in over 48 technically advanced cybersecurity and compliance services designed to protect cardholder and other sensitive data, secure in-scope networks, systems, and website applications.

Managed Security Solutions >

Compliance Assessments>

Security Testing >

Consulting Services >

Customer Reviews

we are grateful to receive their feedback on our service.

Who We Are

we are grateful to receive their feedback on our service.

Managed Security Solutions >

Powerful, optimized SIEM running 24/7/365.

Real-time active threat intelligence. Rapidly find and contain intrusions.

Powerful, optimized SIEM running 24/7/365.

Track & Respond To Suspicious Activity In Your Network Traffic

Empower your incident response and security operations functions with real-time active threat intelligence.

Why Choose Us?

Our expert security consultants and QSAs are fully certified across multiple disciplines and have decades of experience helping businesses stay protected against an ever-evolving cyber threat landscape. We build long-term relationships with our clients and provide holistic service offering to meet all their security and compliance needs while outlining a path to continued improvements within their internal security program(s).

Why Choose Us?

Our expert security consultants and QSAs are fully certified across multiple disciplines and have decades of experience helping businesses stay protected against an ever-evolving cyber threat landscape. We build long-term relationships with our clients and provide holistic service offering to meet all their security and compliance needs while outlining a path to continued improvements within their internal security program(s).

Advanced linux auditing blog.
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MegaplanIT

Security & Compliance

Advanced Linux Auditing

The Need for Linux Auditing

Auditing Linux system events is critical to any organization’s governance, risk, and compliance objectives. In order to conduct efficient forensic investigations and ensure accountability, the proper security policies and controls have to be in place.

Compliance: Internal and external auditing requirements typically expect some level of minimum log collection.

Security: Security incident detections are enabled by the deeper context provided by audit logs.

Forensics: Forensic investigations rely heavily on detailed and accurate audit logging.

Operations: Troubleshooting and identifying misconfigurations is sometimes only possible with advanced auditing.

 

Syslog and audited

  •  Syslog operates as an application and a protocol, meaning that it is capable of generating and forwarding system logs to a log aggregator.
  •  Audited operates as an application at the kernel level, meaning it has much more granular visibility, but does not have its own protocol and cannot forward system logs.

 

CISOfy/lynis Security Auditing Tool

Lynis is a security auditing tool for Linux. It performs an in-depth security scan and runs on the system itself. The primary goal is to test security defenses and provide tips for further system hardening. It will also scan for general system information, vulnerable software packages, and possible configuration issues

Policy Auditing: Highlight the differences between local policies and security baselines

Policy Reporting: Export results as a CSV or Excel Spreadsheet

Types of Audited Rules

Control RulesFile System RulesSystem Call Rules
Delete previous rulesMonitor readMonitor specific system calls
Set buffer sizeMonitor writeFilter on specific events to be logged
Make config immutableMonitor execution 
Panic on failureMonitor attribute changes 
Message rate limit  

The Need for Audited Configuration

Traditional Linux audit logging is great for basic compliance purposes; not for making security detections. Audited is a Linux system service that hooks into the kernel and provides detailed information about user modifications, logon activity, use of privileged commands, administrator actions, and kernel module activity. It subsequently reports on these events to help identify malicious or anomalous activity. This allows you to better understand how intruders and malware operate on your network.

ExecutionPersistenceExfiltration
Module LoadingApplication ShimmingData Compression
Powershell ExecutionBITS JobsData Encryption
ScriptingDLL Search Order HijackingExfiltration Over Alt Protocol & CNC
Service ExecutionLocal Job SchedulingRemote Access Tools
User ExecutionLogon ScriptsRemote File Copy
Linux Remote ManagementScheduled TasksScheduled Transfer

Automating audited Policy Configuration

Advanced Auditing: Automatically configure your local audit policy to comply with the CIS security baseline.

CentOS 7 and Ubuntu 16 Support: Out-of-the-box support for CentOS and Ubuntu systems. Minor modifications are necessary for other systems.

Deploy in Seconds: Copy and paste 3 lines of bash into a root terminal to configure everything.

Looking for a knowledgeable partner for your cybersecurity and compliance efforts? We're Here To Help!

We look forward to talking to you about your upcoming Security Test, Compliance Assessment, and Managed Security Services priorities. Our expert security consultants and QSAs are fully certified and have decades of experience helping businesses like yours stay safe from cyber threats. Set up a time to chat with us about your biggest payment security and compliance challenges so we can partner with you to solve them!

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