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.


04:39 PM
Dark Reading
Dark Reading
Products and Releases

Zbot Trojan Spreads By Fake Facebook Friend Request

New wave of fake Facebook emails leads to malware-contaminated websites

THALGAU, Austria, Aug. 30, 2011 /PRNewswire/ -- Every Facebook user is familiar with the friend invitation via email on Facebook. The malware analyst team of security expert Emsisoft has now revealed that cyber criminals make use of this system to infect users with malicious software.

Especially fraudulent emails with the subject "Kaamil Mahmoud wants to be friends on Facebook" do not lead to the original Facebook website, but to a fake one as soon as the recipient clicks the "Confirm Friend Request" link.

The fake Facebook page shows the message "Your version of Macromedia Flash Player is too old to continue. Download and install the latest version of Adobe Flash Player". By clicking on "Download and Install", the browser will download a malware file named updateflash.exe - it contains the Zeus trojan, also known as Zbot.

Unfortunately, not executing the file does not mean the victim escapes infection, as the fake Facebook page will also load another address (like hxxp://vampirefishsd.com) in the background. An exploit script being part of the BlackHole Exploit Kit runs on this website.

Christian Mairoll, CEO at Emsisoft: "We advise people to update their operating system and all applications regularly, including security programs. Second, everybody should be careful with suspicious emails: those from Facebook always contain the name of the user and all links point to the legitimate Facebook website, of course. The safest way is to open Facebook manually in the browser and have a look at new friend invitations there."


Comment  | 
Print  | 
More Insights
Newest First  |  Oldest First  |  Threaded View
Why Cyber-Risk Is a C-Suite Issue
Marc Wilczek, Digital Strategist & CIO Advisor,  11/12/2019
DevSecOps: The Answer to the Cloud Security Skills Gap
Lamont Orange, Chief Information Security Officer at Netskope,  11/15/2019
Unreasonable Security Best Practices vs. Good Risk Management
Jack Freund, Director, Risk Science at RiskLens,  11/13/2019
Register for Dark Reading Newsletters
White Papers
Cartoon Contest
Current Issue
Navigating the Deluge of Security Data
In this Tech Digest, Dark Reading shares the experiences of some top security practitioners as they navigate volumes of security data. We examine some examples of how enterprises can cull this data to find the clues they need.
Flash Poll
Rethinking Enterprise Data Defense
Rethinking Enterprise Data Defense
Frustrated with recurring intrusions and breaches, cybersecurity professionals are questioning some of the industrys conventional wisdom. Heres a look at what theyre thinking about.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
PUBLISHED: 2019-11-17
KairosDB through 1.2.2 has XSS in view.html because of showErrorMessage in js/graph.js, as demonstrated by view.html?q= with a '"sampling":{"value":"<script>' substring.
PUBLISHED: 2019-11-17
An issue was discovered in Xorux Lpar2RRD 6.11 and Stor2RRD 2.61, as distributed in Xorux 2.41. They do not correctly verify the integrity of an upgrade package before processing it. As a result, official upgrade packages can be modified to inject an arbitrary Bash script that will be executed by th...
PUBLISHED: 2019-11-17
An integer overflow in the search_in_range function in regexec.c in Oniguruma 6.x before 6.9.4_rc2 leads to an out-of-bounds read, in which the offset of this read is under the control of an attacker. (This only affects the 32-bit compiled version). Remote attackers can cause a denial-of-service or ...
PUBLISHED: 2019-11-17
iTerm2 through 3.3.6 has potentially insufficient documentation about the presence of search history in com.googlecode.iterm2.plist, which might allow remote attackers to obtain sensitive information, as demonstrated by searching for the NoSyncSearchHistory string in .plist files within public Git r...
PUBLISHED: 2019-11-17
jhead 3.03 is affected by: heap-based buffer over-read. The impact is: Denial of service. The component is: ReadJpegSections and process_SOFn in jpgfile.c. The attack vector is: Open a specially crafted JPEG file.