article thumbnail

Ask Fitis, the Bear: Real Crooks Sign Their Malware

Krebs on Security

Megatraffer explained that malware purveyors need a certificate because many antivirus products will be far more interested in unsigned software, and because signed files downloaded from the Internet don’t tend to get blocked by security features built into modern web browsers. “Antivirus software trusts signed programs more.

Malware 248
article thumbnail

Why Malware Crypting Services Deserve More Scrutiny

Krebs on Security

If you operate a cybercrime business that relies on disseminating malicious software, you probably also spend a good deal of time trying to disguise or “crypt” your malware so that it appears benign to antivirus and security products. frequently relied on the somewhat unique password, “ plk139t51z.”

Malware 225
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

Feds Warn About Critical Infrastructure Ransomware Attacks, Vulnerabilities

eSecurity Planet

The agencies offered some sound cybersecurity advice for BlackByte that applies pretty generally: Conduct regular backups and store them as air-gapped, password-protected copies offline. or Windows Server (2008 R2 SP1, 2012 Gold) allows attackers to execute arbitrary code via crafted HTTP requests. 7 SP1, 8, 8.1)

article thumbnail

StripedFly: Perennially flying under the radar

SecureList

This information includes website login usernames and passwords, as well as personal autofill data such as name, address, phone number, company, and job title. Supported Windows versions include Windows Vista, Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012, and Windows 10 up to build 14392. 8, 15.0.0.0/8,

Malware 119
article thumbnail

Rise in Qakbot attacks traced to evolving threat techniques

Security Boulevard

Active since 2008, Qakbot, also known as QBot, QuackBot and Pinkslipbot, is a common trojan malware designed to steal passwords. Then performs further operations, including: Checks for the presence of antivirus software. This pervasive threat spreads using an email-driven botnet that inserts replies in active email threads.

Malware 98
article thumbnail

Types of Malware & Best Malware Protection Practices

eSecurity Planet

Install an antivirus solution that includes anti-adware capabilities. Organizations can help prevent their computers from becoming part of a botnet by installing anti-malware software, using firewalls , keeping software up-to-date, and forcing users to use strong passwords. How to Defend Against Adware.

Malware 105
article thumbnail

What is Malware? Definition, Purpose & Common Protections

eSecurity Planet

Since 2008, antivirus and cybersecurity software testers AV-TEST have kept track of the number of newly-developed malware worldwide, totaling at nearly 1 billion as of September 2022. Your antivirus program or other security solution is randomly disabled. An August 2022 Statista report counted 2.8 Unexpected crashes.

Malware 75