Trustwave SpiderLabs Uncovers Ov3r_Stealer Malware Spread via Phishing and Facebook Advertising. Learn More

Trustwave SpiderLabs Uncovers Ov3r_Stealer Malware Spread via Phishing and Facebook Advertising. Learn More

Managed Detection & Response

Eliminate active threats with 24/7 threat detection, investigation, and response.

Co-Managed SOC (SIEM)

Maximize your SIEM investment, stop alert fatigue, and enhance your team with hybrid security operations support.

Advisory & Diagnostics

Advance your cybersecurity program and get expert guidance where you need it most.

Penetration Testing

Test your physical locations and IT infrastructure to shore up weaknesses before exploitation.

Database Security

Prevent unauthorized access and exceed compliance requirements.

Email Security

Stop email threats others miss and secure your organization against the #1 ransomware attack vector.

Digital Forensics & Incident Response

Prepare for the inevitable with 24/7 global breach response in-region and available on-site.

Firewall & Technology Management

Mitigate risk of a cyberattack with 24/7 incident and health monitoring and the latest threat intelligence.

Microsoft Exchange Server Attacks
Stay protected against emerging threats
Rapidly Secure New Environments
Security for rapid response situations
Securing the Cloud
Safely navigate and stay protected
Securing the IoT Landscape
Test, monitor and secure network objects
Why Trustwave
About Us
Awards and Accolades
Trustwave SpiderLabs Team
Trustwave Fusion Security Operations Platform
Trustwave Security Colony
Technology Alliance Partners
Key alliances who align and support our ecosystem of security offerings
Trustwave PartnerOne Program
Join forces with Trustwave to protect against the most advance cybersecurity threats

How to Protect Your Valuable Data When Zero-Day Exploits Are On the Loose

During the past two weeks, several zero-day vulnerabilities have turned up in commonly used software. The most publicized of these was the zero-day affecting all versions of Microsoft Internet Explorer. Microsoft considered the vulnerability critical enough that it decided to release a patch for Windows XP, even though it ended support for that operating system at the beginning of April.

Typically, criminals discover zero-day vulnerabilities before they are known by vendors like Microsoft. This makes them especially dangerous for several reasons. Since there is no vendor patch available for the flaw, criminals are free to exploit it at will. Also, since security vendors don't know about the bug, security products and services don't know what to look for or block. This means criminals can develop an exploit with a high success rate and low detection rate.

Finding a zero-day and then developing an exploit for it requires a great deal of knowledge and skill. This is why many zero-days are found in conjunction with sophisticated, targeted attacks. For example, the Internet Explorer zero-day was a part a larger malware distribution campaign.

Part of the reason we are seeing more zero-day vulnerabilities discovered these days is because of the growth of third-party security vendors. To keep up with ever-evolving arms race between attackers and potential victims, more organizations are asking for help, whether that's monitoring security logs, making sure their security technologies and policies are updated based on the latest threats or providing incident response after a breach has occurred. Having more expert eyes in the field is definitely one reason more zero-days are being detected.

Another silver lining in this zero-day outbreak is that it should encourage organizations to revisit their overall security practices. Businesses should consider how a multi-layer security strategy that includes up-to-date anti-malware technologies and network monitoring can help lower the threat risk. It's also critical to deploy a security awareness education program so that users can spot signs of phishing emails and potentially malicious websites. Finally, organizations should be prepared and have in place an incident response plan that has been recently updated and tested. If you cannot prevent exploitation, it's very important to be able to respond and recover from it in a timely manner.

Karl Sigler is threat intelligence manager at Trustwave.

Latest Trustwave Blogs

DOJ Disrupts Russian Botnet Created Using Unchanged Admin Credentials

The US Justice Department conducted a court-authorized operation in January that thwarted an on-going Russian GRU botnet campaign that used unchanged publicly known default administrator passwords to...

Read More

Lessons to be Learned: Attacks on Higher Education Proliferate

Trustwave SpiderLabs is wrapping up a multi-month investigation into the threats facing the education sector, across higher education, primary and secondary schools. Trustwave will post the 2024...

Read More

Understanding Why Supply Chain Security is Often Unheeded

Many organizations downplay the critical aspect of whether their cybersecurity provider has the ability to properly vet a third-party vendor's cybersecurity posture.

Read More