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OSSEC

Backdoors in Malicious Plugins

May 3, 2019Cesar Anjos

Cronjob Backdoors

Attackers commonly rely on backdoors to easily gain reentry and maintain control over a website. They also use PHP functions to further deepen the level of their backdoors. A good example of this is the shell_exec function which allows plain shell commands to be run…

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PCI Compliance

March 11, 2019Victor Santoyo

PCI for SMB: Requirement 10 & 11 – Regularly Monitor and Test Networks

Update: Read our new PCI Compliance guide. Welcome to the seventh post of a series on understanding the Payment Card Industry Data Security Standard–PCI DSS. We want to show how…

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September 23, 2016Daniel Cid

What is the Status of IPv6 Adoption?

The internet is a complex ecosystem of interconnected devices, and at its core is the Internet Protocol (IP). This protocol is currently in its second major incarnation (IPv6) but many…

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March 23, 2016Daniel Cid

Ask Sucuri: How Does Sucuri Clean a Website?

Question: How does Sucuri clean hacked websites? What is the process? We clean a lot of websites, ~ 400 / 500, daily during our normal load. To understand how we do it,…

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March 17, 2016Daniel Cid

Server Security: Indicators of Compromised Behavior with OSSEC

We leverage OSSEC extensively here at Sucuri to help monitor and protect our servers. If you are not familiar with OSSEC, it is an open source Intrusion Detection System (HIDS); with…

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February 19, 2016Daniel Cid

Investigating a Compromised Server with Rootcheck

heWhat do you do if you suspect your server (VPS or dedicated) has been compromised? If you are a customer, you have the option to leverage our team to perform…

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February 3, 2016Daniel Cid

Server Security: Import WordPress Events to OSSEC

We leverage OSSEC extensively to help monitor and protect our servers. If you are not familiar with OSSEC, it is an open source Intrusion Detection System (HIDS); it has a powerful…

Read More about Server Security: Import WordPress Events to OSSEC

January 20, 2016Daniel Cid

Server Security: OSSEC Integrates Slack and PagerDuty

We leverage OSSEC extensively to help monitor and protect our servers. If you are not familiar with OSSEC, it is an open source Intrusion Detection System (HIDS); it has a powerful…

Read More about Server Security: OSSEC Integrates Slack and PagerDuty

December 9, 2015Daniel Cid

Server Security: OSSEC Updated With GeoIP Support

We leverage OSSEC extensively to help monitor and protect our servers. If you are not familiar with OSSEC, it is an open source Host-Based Intrusion Detection System (HIDS); it has a…

Read More about Server Security: OSSEC Updated With GeoIP Support

November 24, 2014Daniel Cid

Protecting Against Unknown Software Vulnerabilities

Bugs exist in every piece of code. It is suggested that for every 1,000 lines of code, there are on average 1 to 5 bugs to be found. Some of…

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January 31, 2013Tony Perez

Web Server Attacks – Apache Modules, Log Management and RELM

New year, same tricks, mostly because they work. That’s how we’re kicking off the new year folks. In September of 2012, Dennis, of Unmask Parasites, first wrote about rogue apache…

Read More about Web Server Attacks – Apache Modules, Log Management and RELM

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