Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Risk

12/22/2010
01:33 PM
Adam Ely
Adam Ely
Commentary
Connect Directly
LinkedIn
Twitter
RSS
E-Mail
50%
50%

'Tis Attack Season: 5 Ways To Fight Back

For most of us, it's time for sleeping in, spending time with family, and ignoring e-mail. For criminals, it's time to go to work. Scammers are looking to exploit e-card traffic, sales promotions, and the general jolliness of Internet users. What better time to attack unwatched enterprise systems, siphon out data, and dig deeper into networks?

For most of us, it's time for sleeping in, spending time with family, and ignoring e-mail. For criminals, it's time to go to work. Scammers are looking to exploit e-card traffic, sales promotions, and the general jolliness of Internet users. What better time to attack unwatched enterprise systems, siphon out data, and dig deeper into networks?Here are a few steps to keep an eye on your security while still having fun over the holiday season.

1. Rotate on-call and incident response. No single person should be chained to e-mail and incident response over the holidays; that's just asking for inattention to come back and bite you. At minimum, rotate responsibility among several people over the holiday season. Maybe even consider breaking the rotation into smaller slots than normal to allow people more time with family. That way, when they are on call, they'll be more apt to closely monitor events.

2. Check security events and logs regularly. Don't slack off here just because the office is empty. Watch network traffic to ensure abnormally large data transfers are not occurring. Attackers use times when people are away to transfer out their caches of stolen data. If they're smart, they will send small amounts at a time, but even this may be noticeable on days when no one is in the office.

3. Take this time to do maintenance. Patch your systems, reboot what needs rebooting, and tune your IDS. Use the downtime to up your security.

4. Protect against malware. Update your malware signatures and run full scans of all systems. Attackers love to slip malware into fake greeting cards or holiday Web sites. Chances are something is already in your network and an attacker is waiting to use it. While users are out is the best time to scan systems and remove malware.

5. Feeling like the Grinch? Test your incident response plan. The holiday season is the best time to test your IR plan and understand if your team is truly ready. Of course, your co-workers will not be pleased with you (see item #1), so be prepared.

Working during the holidays is no fun, but our opponents never stop, so we can't either. Ensure your protections and response plans are in place, be diligent and proactive, and hope for the best.

By the way, we're running through January 3 an extensive survey on risk management and would appreciate your input.

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
News
US Formally Attributes SolarWinds Attack to Russian Intelligence Agency
Jai Vijayan, Contributing Writer,  4/15/2021
News
Dependency Problems Increase for Open Source Components
Robert Lemos, Contributing Writer,  4/14/2021
News
FBI Operation Remotely Removes Web Shells From Exchange Servers
Kelly Sheridan, Staff Editor, Dark Reading,  4/14/2021
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
2021 Top Enterprise IT Trends
We've identified the key trends that are poised to impact the IT landscape in 2021. Find out why they're important and how they will affect you today!
Flash Poll
How Enterprises are Developing Secure Applications
How Enterprises are Developing Secure Applications
Recent breaches of third-party apps are driving many organizations to think harder about the security of their off-the-shelf software as they continue to move left in secure software development practices.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2021-3035
PUBLISHED: 2021-04-20
An unsafe deserialization vulnerability in Bridgecrew Checkov by Prisma Cloud allows arbitrary code execution when processing a malicious terraform file. This issue impacts Checkov 2.0 versions earlier than Checkov 2.0.26. Checkov 1.0 versions are not impacted.
CVE-2021-3036
PUBLISHED: 2021-04-20
An information exposure through log file vulnerability exists in Palo Alto Networks PAN-OS software where secrets in PAN-OS XML API requests are logged in cleartext to the web server logs when the API is used incorrectly. This vulnerability applies only to PAN-OS appliances that are configured to us...
CVE-2021-3037
PUBLISHED: 2021-04-20
An information exposure through log file vulnerability exists in Palo Alto Networks PAN-OS software where the connection details for a scheduled configuration export are logged in system logs. Logged information includes the cleartext username, password, and IP address used to export the PAN-OS conf...
CVE-2021-3038
PUBLISHED: 2021-04-20
A denial-of-service (DoS) vulnerability in Palo Alto Networks GlobalProtect app on Windows systems allows a limited Windows user to send specifically-crafted input to the GlobalProtect app that results in a Windows blue screen of death (BSOD) error. This issue impacts: GlobalProtect app 5.1 versions...
CVE-2021-3506
PUBLISHED: 2021-04-19
An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The hi...