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Browsing Category

Website Malware Infections

851 posts
Labs Note
  • Sucuri Labs
  • Website Malware Infections
  • WordPress Security

Hiding a Hacktool Using a .jpg Extension

  • Gabriel Barbosa
  • June 17, 2019
Hackers will do anything to hide their intentions behind the files they upload to compromised websites. This time, we’ve found a hacktool hidden inside a…
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Stored XSS in MyBB
  • Vulnerability Disclosure
  • Website Malware Infections
  • Website Security

Stored XSS in MyBB <= 1.8.20

  • Marc-Alexandre Montpas
  • June 11, 2019
The open source PHP forum software myBB recently published a new update, version 1.8.21. This is a security release fixing a Stored XSS vulnerability in…
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Korean Gambling and Call Girl Spam on Hacked and Non-hacked Sites
  • Website Malware Infections
  • Website Security
  • WordPress Security

Korean Gambling and Call Girl Spam on Hacked and Non-hacked Sites

  • Denis Sinegubko
  • June 7, 2019
This blog post talks about how a web spam campaign that targets only one country may create problems for sites owners around the world —…
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  • Ecommerce Security
  • Website Malware Infections
  • Website Security

Closed Source E-commerce Platforms Can Be Compromised

  • Krasimir Konov
  • June 3, 2019
These days, the majority of store owners opt-in for the easiest closed-source ecommerce platform options. For the most part, these platforms typically allow users to…
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Labs Note
  • Website Malware Infections
  • Website Security

Malware-Serving Spam to Search Engine Bots

  • Krasimir Konov
  • May 31, 2019
We recently discovered this malware with a list of IP ranges belonging to search engines that are serving them SEO spam. It even takes a…
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PHP Backdoor Evaluates XOR Encrypted Requests
  • Website Malware Infections
  • Website Security

PHP Backdoor Evaluates XOR Encrypted Requests

  • Luke Leal
  • May 29, 2019
In the past, we’ve mentioned how the PHP XOR bitwise operator (represented by the caret ^) can be used to encrypt a malware’s source code.…
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Labs Note
  • Sucuri Labs
  • Website Malware Infections
  • WordPress Security

Malware Campaign Evolves to Target New Plugins: May 2019

  • John Castro
  • May 28, 2019
A long-lasting malware campaign targeting deprecated, vulnerable versions of plugins continues to be leveraged by attackers to inject malicious scripts into affected websites. Easily automated…
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Labs Note
  • Sucuri Labs
  • Website Malware Infections
  • WordPress Security

Threat intelligence gathering from slight changes in malicious code samples

  • Luke Leal
  • May 24, 2019
We found the following PHP backdoor in August 2018 along with other malware samples uploaded after hackers exploit a specific vulnerable WordPress plugin covered in…
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Labs Note
  • Sucuri Labs
  • Website Malware Infections
  • Website Security

Hosting page templates causing your website ad campaign to be blocked

  • Cesar Anjos
  • May 22, 2019
It’s quite common that hosting providers have templates set for pages like 40x and 50x error pages but it’s uncommon for those templates to have…
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W97M/Downloader Malware Dropper Served from Compromised Websites
  • Website Malware Infections
  • Website Security

W97M/Downloader Malware Dropper Served from Compromised Websites

  • Bruno Zanelato
  • May 20, 2019
W97M/Downloader is part of a large banking malware operation that peaked in March 2016. Bad actors have been distributing this campaign for well over a…
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Labs Note
  • Sucuri Labs
  • Website Malware Infections
  • Website Security

Hex’ing the CSS Style Attribute for Black Hat SEO

  • Ahmad Azizan Idris
  • May 16, 2019
Dealing with Black Hat SEO injections on our daily operation is always fun and challenging at the same time. One day, we may work with…
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