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.

Attacks/Breaches

2/10/2011
03:54 PM
Connect Directly
Google+
Twitter
RSS
E-Mail
50%
50%

New Microsoft Data Shows Zbot Decline

MSRT initially found 444,292 computers infected with the Zeus-based Trojan, according to new data released today from Microsoft

Microsoft cleaned up close to a half-million machines infected with the Zbot botnet the month detection for the malware was added to the software giant's Malicious Software Removal Tool (MSRT).

The Win32/Zbot is a family of password-stealing Trojans that typically targets online banking credentials, stealing everything from website certificates to browser cookies; it's based on the Zeus malware kit. Last October, Microsoft added Win32/Zbot detection for 500 variants of the malware to its MSRT, and some 444,292 computers were found that month to be infected with the Trojan, according to new data released today from Microsoft. Around 34 percent of the Win32/Zbot variants were using older versions, according to newly released data from Microsoft.

And while Win32/Zbot infections among enterprises using Microsoft's Forefront Endpoint Protection and Threat Management Gateway in September hit a high of 134 percent of the monthly average number of detections for 2010, once MSRT began scanning for Zbot, the number of infections found by Microsoft's enterprise tools declined by about 46 percent.

One unexplained trend: In both August and October 2010, Win32/Zbot Hotmail detections jumped. "It is unclear what prompted botnet operators to greatly increase email distribution of the Win32/Zbot malware," according to Microsoft's new white paper, "SIR: Special Edition -- Battling the Zbot Threat."

The Trojan was most prevalent in Spain, where one out of every 100 computers running Microsoft Security Essentials had at least one Win32/Zbot attack attempt.

Have a comment on this story? Please click "Add Your Comment" below. If you'd like to contact Dark Reading's editors directly, send us a message. 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

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Zero-Factor Authentication: Owning Our Data
Nick Selby, Chief Security Officer at Paxos Trust Company,  2/19/2020
44% of Security Threats Start in the Cloud
Kelly Sheridan, Staff Editor, Dark Reading,  2/19/2020
Ransomware Damage Hit $11.5B in 2019
Dark Reading Staff 2/20/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
6 Emerging Cyber Threats That Enterprises Face in 2020
This Tech Digest gives an in-depth look at six emerging cyber threats that enterprises could face in 2020. Download your copy today!
Flash Poll
How Enterprises Are Developing and Maintaining Secure Applications
How Enterprises Are Developing and Maintaining Secure Applications
The concept of application security is well known, but application security testing and remediation processes remain unbalanced. Most organizations are confident in their approach to AppSec, although others seem to have no approach at all. Read this report to find out more.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-7914
PUBLISHED: 2020-02-21
btif/src/btif_dm.c in Android before 5.1 does not properly enforce the temporary nature of a Bluetooth pairing, which allows user-assisted remote attackers to bypass intended access restrictions via crafted Bluetooth packets after the tapping of a crafted NFC tag.
CVE-2016-4606
PUBLISHED: 2020-02-21
Curl before 7.49.1 in Apple OS X before macOS Sierra prior to 10.12 allows remote or local attackers to execute arbitrary code, gain sensitive information, cause denial-of-service conditions, bypass security restrictions, and perform unauthorized actions. This may aid in other attacks.
CVE-2020-5243
PUBLISHED: 2020-02-21
uap-core before 0.7.3 is vulnerable to a denial of service attack when processing crafted User-Agent strings. Some regexes are vulnerable to regular expression denial of service (REDoS) due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent hea...
CVE-2019-14688
PUBLISHED: 2020-02-20
Trend Micro has repackaged installers for several Trend Micro products that were found to utilize a version of an install package that had a DLL hijack vulnerability that could be exploited during a new product installation. The vulnerability was found to ONLY be exploitable during an initial produc...
CVE-2019-19694
PUBLISHED: 2020-02-20
The Trend Micro Security 2019 (15.0.0.1163 and below) consumer family of products is vulnerable to a denial of service (DoS) attack in which a malicious actor could manipulate a key file at a certain time during the system startup process to disable the product's malware protection functions or the ...