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.

Analytics

5/30/2018
02:45 PM
Connect Directly
Twitter
RSS
E-Mail
50%
50%

FireEye Offers Free Tool to Detect Malicious Remote Logins

Open source GeoLogonalyzer helps to weed out hackers exploiting stolen credentials to log into their targets.

FireEye today released an open source tool called GeoLogonalyzer for catching remote logins from hackers.

Stolen enterprise user credentials are all the rage among hackers these days, but spotting the bad guys among legitimate users logging in remotely can be difficult due to the large volume of remote access links to an organization.

David Pany, senior consultant at Mandiant, a FireEye company, says the tool helps analyze logs to spot geographically infeasible logins: flagging a New York-based user logging in at 13:00 and a few minutes later connecting to a VPN from Australia, for example. "Once remote authentication activity is baselined across an environment, analysts can begin to identify authentication activity that deviates from business requirements and normalized patterns," Pany said in a blog post today announcing the new free tool.

Other anomalies that could indicate hackers are logging in include user accounts registered to a single physical location that have logons from locations where the user is not likely to be sitting, as well as logons from different source-host names or via multiple VPN clients.

FireEye recommends several best practices for thwarting remote access hacks in addition to deploying GeoLogonalyzer, including limiting remote access from the Internet to sensitive data; instituting multifactor authentication using one-time tokens; and whitelisting legit IP address ranges for remote access users, among other steps.

GeoLogonalyzer is available under the Apache License 2.0 here via GitHub.

Related Content:

Kelly Jackson Higgins is the Executive Editor of Dark Reading. She is an award-winning veteran technology and business journalist with more than two decades of experience in reporting and editing for various publications, including Network Computing, Secure Enterprise ... View Full Bio
 

Recommended Reading:

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Edge-DRsplash-10-edge-articles
7 Old IT Things Every New InfoSec Pro Should Know
Joan Goodchild, Staff Editor,  4/20/2021
News
Cloud-Native Businesses Struggle With Security
Robert Lemos, Contributing Writer,  5/6/2021
Commentary
Defending Against Web Scraping Attacks
Rob Simon, Principal Security Consultant at TrustedSec,  5/7/2021
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-2020-16632
PUBLISHED: 2021-05-15
A XSS Vulnerability in /uploads/dede/action_search.php in DedeCMS V5.7 SP2 allows an authenticated user to execute remote arbitrary code via the keyword parameter.
CVE-2021-32073
PUBLISHED: 2021-05-15
DedeCMS V5.7 SP2 contains a CSRF vulnerability that allows a remote attacker to send a malicious request to to the web manager allowing remote code execution.
CVE-2021-33033
PUBLISHED: 2021-05-14
The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.
CVE-2021-33034
PUBLISHED: 2021-05-14
In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.
CVE-2019-25044
PUBLISHED: 2021-05-14
The block subsystem in the Linux kernel before 5.2 has a use-after-free that can lead to arbitrary code execution in the kernel context and privilege escalation, aka CID-c3e2219216c9. This is related to blk_mq_free_rqs and blk_cleanup_queue.