Trustwave SpiderLabs Uncovers Ov3r_Stealer Malware Spread via Phishing and Facebook Advertising. Learn More

Trustwave SpiderLabs Uncovers Ov3r_Stealer Malware Spread via Phishing and Facebook Advertising. Learn More

Services
Capture
Managed Detection & Response

Eliminate active threats with 24/7 threat detection, investigation, and response.

twi-managed-portal-color
Co-Managed SOC (SIEM)

Maximize your SIEM investment, stop alert fatigue, and enhance your team with hybrid security operations support.

twi-briefcase-color-svg
Advisory & Diagnostics

Advance your cybersecurity program and get expert guidance where you need it most.

tw-laptop-data
Penetration Testing

Test your physical locations and IT infrastructure to shore up weaknesses before exploitation.

twi-database-color-svg
Database Security

Prevent unauthorized access and exceed compliance requirements.

twi-email-color-svg
Email Security

Stop email threats others miss and secure your organization against the #1 ransomware attack vector.

tw-officer
Digital Forensics & Incident Response

Prepare for the inevitable with 24/7 global breach response in-region and available on-site.

tw-network
Firewall & Technology Management

Mitigate risk of a cyberattack with 24/7 incident and health monitoring and the latest threat intelligence.

Solutions
BY TOPIC
Microsoft Exchange Server Attacks
Stay protected against emerging threats
Rapidly Secure New Environments
Security for rapid response situations
Securing the Cloud
Safely navigate and stay protected
Securing the IoT Landscape
Test, monitor and secure network objects
Why Trustwave
About Us
Awards and Accolades
Trustwave SpiderLabs Team
Trustwave Fusion Security Operations Platform
Trustwave Security Colony
Partners
Technology Alliance Partners
Key alliances who align and support our ecosystem of security offerings
Trustwave PartnerOne Program
Join forces with Trustwave to protect against the most advance cybersecurity threats
SpiderLabs Blog

[Honeypot Alert] User-Agent Field XSS Attacks

Our web honeypots picked up some more XSS attacks today:

8650_335ec357-4f34-46d6-9cf5-64be74615ca8

The highlighted data in the Apache access_log holds the User-Agent field token data from the request. In this case, the attacker has inserted some Javascript code that would use the window.location function to cause the web browser to request the txt2pic.com website. After checking out that location we find the following:

$ curl -D - http://txt2pic.comHTTP/1.1 302 Object movedServer: Microsoft-IIS/5.0Date: Fri, 30 Nov 2012 14:36:28 GMTFun: www.WHAK.comConnection: closeLocation: http://www.imagegenerator.orgContent-Length: 150Content-Type: text/htmlSet-Cookie: ASPSESSIONIDCQSCSBBC=HCPFGNFAEIIHNDEPAEFEFFHL; path=/Cache-control: privateObject moved<h1>Object Moved</h1>This object may be found <a href="http://www.imagegenerator.org">here</a>.

This server responds with a 302 redirect and sends the user onto the imagegenerator.org website. So, this attack scenario presumably is simply a method of SPAM linking to increase web traffic hits.

Recommendation

While this attack instance was relatively harmless, the take away from this example is that you must take care if you are ever utilizing any type of web-based log analytic processes. If you are ever using a web browser to review log file data, this type of an attack may trigger. See CAPEC-106: Cross Site Scripting through Log Files for more info.

 

Latest SpiderLabs Blogs

Trustwave SpiderLabs: Insights and Solutions to Defend Educational Institutions Against Cyber Threats

Security teams responsible for defending educational institutions at higher education and primary school levels often find themselves facing harsh lessons from threat actors who exploit the numerous...

Read More

Breakdown of Tycoon Phishing-as-a-Service System

Just weeks after Trustwave SpiderLabs reported on the Greatness phishing-as-a-service (PaaS) framework, SpiderLabs’ Email Security team is tracking another PaaS called Tycoon Group.

Read More

Trustwave SpiderLabs Uncovers Ov3r_Stealer Malware Spread via Phishing and Facebook Advertising

During an Advanced Continual Threat Hunt (ACTH) investigation that took place in early December 2023, Trustwave SpiderLabs discovered Ov3r_Stealer, an infostealer distributed using Facebook...

Read More