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.

ABTV

8/30/2017
05:35 PM
Curtis Franklin Jr.
Curtis Franklin Jr.
Curt Franklin
50%
50%

Millions of Email Addresses Exposed in Latest Malware Database

A database housed in the Netherlands is found to contain hundreds of millions of hacked email addresses.

Another week, another multi-million member list of pwned email addresses exposed on the Internet. This time it's the database of names used by a malware-spreading spambot based in the Netherlands and the result is both more and less than meets the eye.

A French security researcher who goes by the nom de hack of benkow found the stash as s/he was researching Ursnif, a trojan that steals banking credentials from unsuspecting users.

During the research, Benkow found servers with open-text (i.e., unencrypted) data files containing 711 million email addresses. According to news reports, Troy Hunt, who runs the website haveibeenpwned.com, reported that this was the largest single stash of stolen email addresses ever submitted to the site.

To make matters worse, the data files also included passwords and user names. Taken all together, this represents a store of data that might easily be used to take control of email accounts and leverage them for massive phishing and malware efforts.

The "less than meets the eye" part of the news starts with analysis presented by Troy Hunt in his blog. He reports that many of the email addresses in the data files appear to be either randomly generated addresses at known domains, lists of variations on existing email addresses or common words (like "sales") appended to legitimate email domains.


Track the heartbeat of the virtualization movement with Light Reading at the NFV & Carrier SDN event in Denver. There's still time to register for this exclusive opportunity to learn from and network with industry experts -- communications service providers get in free!

Next, Hunt's analysis of the lists shows that virtually all of the passwords in the database were part of the 2012 Linkedin account breach. If the owners of those passwords have been at all sensible, this means that the vast majority of the passwords in the list are no longer valid, save as a sort of template through which new passwords might be guessed.

Even with the "good news" contained in these two points, there is tremendous danger in both the breach and the disclosure of this massive database. In a written statement provided to Security Now, Christian Lees, CTO and CSO of InfoArmor, said, "Continuous large data disclosures of this type, with potentially unverifiable data sources and targets, increase alert fatigue for security professionals." On the other hand, he pointed out, "This is another reminder that threat actors also live the dual-edge sword of security."

Security professionals are working with authorities in the Netherlands to shut down the servers holding the database and acting as command and control for Ursnif.

Related posts:

— Curtis Franklin is the editor of SecurityNow.com. Follow him on Twitter @kg4gwa.

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Edge-DRsplash-10-edge-articles
I Smell a RAT! New Cybersecurity Threats for the Crypto Industry
David Trepp, Partner, IT Assurance with accounting and advisory firm BPM LLP,  7/9/2021
News
Attacks on Kaseya Servers Led to Ransomware in Less Than 2 Hours
Robert Lemos, Contributing Writer,  7/7/2021
Commentary
It's in the Game (but It Shouldn't Be)
Tal Memran, Cybersecurity Expert, CYE,  7/9/2021
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
How Data Breaches Affect the Enterprise
Data breaches continue to cause negative outcomes for companies worldwide. However, many organizations report that major impacts have declined significantly compared with a year ago, suggesting that many have gotten better at containing breach fallout. Download Dark Reading's Report "How Data Breaches Affect the Enterprise" to delve more into this timely topic.
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2021-41679
PUBLISHED: 2021-11-30
A SQL injection vulnerability exists in version 8.0 of openSIS when MySQL or MariaDB is used as the application database. An attacker can then issue the SQL command through the /opensis/modules/grades/InputFinalGrades.php, period parameter.
CVE-2021-25987
PUBLISHED: 2021-11-30
Hexo versions 0.0.1 to 5.4.0 are vulnerable against stored XSS. The post “body� and “tags� don’t sanitize malicious javascript during web page generation. Local unprivileged attacker can inject arbitrary...
CVE-2021-41678
PUBLISHED: 2021-11-30
A SQL injection vulnerability exists in version 8.0 of openSIS when MySQL or MariaDB is used as the application database. An attacker can then issue the SQL command through the /opensis/modules/users/Staff.php, staff{TITLE] parameter.
CVE-2021-41677
PUBLISHED: 2021-11-30
A SQL injection vulnerability exists in version 8.0 of openSIS when MySQL or MariaDB is used as the application database. An attacker can then issue the SQL command through the /opensis/functions/GetStuListFnc.php &Grade= parameter.
CVE-2021-42122
PUBLISHED: 2021-11-30
Insufficient Input Validation in Web Applications operating on Business-DNA Solutions GmbH’s TopEase® Platform Version <= 7.1.27 on an object’s attributes with numeric...