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Krasimir Konov

66 posts
Krasimir Konov is Sucuri's Malware Analyst who joined the company in 2014. Krasimir's main responsibilities include analyzing malicious code, signature creation and documentation of malware. His professional experience covers more than 10 years in the IT field, with nine years involved in IT/cyber security. When he’s not analyzing malware or writing Labs notes, you might find Krasimir riding his motorcycle and traveling the world. Connect with him on Twitter or LinkedIn.
Analysis of a Blackhat SEO Script
  • Website Security

Analysis of a Malicious Blackhat SEO Script

  • Krasimir Konov
  • April 26, 2018
An enormous number of SEO spam infections are handled by us here at Sucuri. In our most recent hacked website trend report, we analyzed over…
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Labs Note
  • Sucuri Labs
  • Website Malware Infections
  • WordPress Security

New wave of wp-vcd Malware

  • Krasimir Konov
  • November 13, 2017
Recently we saw a new wave of a known malware that injects malicious WordPress admin users to vulnerable or compromised sites.The malware, well analysed by…
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Malware Serving SEO Spam from External Sites
  • Website Malware Infections

Malware Serving SEO Spam from External Sites

  • Krasimir Konov
  • October 18, 2017
We handle an enormous number of SEO spam infections here at Sucuri. In Q3 of 2016, approximately 37% of all website infection cases were related…
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credit card stealer investigation malware ring script blog header
  • Ecommerce Security
  • Magento Security

Credit Card Stealer Investigation Uncovers Malware Ring

  • Krasimir Konov
  • October 10, 2017
During a recent investigation, I found a new piece of malicious code being used to steal credit card information from compromised Magento sites. What I…
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Labs Note
  • Sucuri Labs
  • Website Malware Infections
  • WordPress Security

SEO spam loading from external site

  • Krasimir Konov
  • September 13, 2017
Many websites get compromised and used for SEO in order to drive traffic to other websites that would usually be ranked very low or completely…
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Expired Domain Leads To Plugin Redirect
  • Website Malware Infections
  • WordPress Security

Expired Domain Leads to WordPress Plugin Redirects

  • Krasimir Konov
  • August 24, 2017
A malicious redirect is a snippet of code used by attackers with the intention of redirecting visitors to another site; a very common tactic seen…
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Labs Note
  • Sucuri Labs
  • Website Malware Infections
  • Website Security

JavaScript Used to Generate Malicious Documents

  • Krasimir Konov
  • August 17, 2017
When talking about compromised environments, we often think that the website itself is the end goal but that’s not always true. In some cases, attackers…
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Labs Note
  • Sucuri Labs
  • Website Malware Infections
  • WordPress Security

Yet Another Expired Domain causes WP Plugin to Redirect Users

  • Krasimir Konov
  • June 20, 2017
Malicious redirects are very common in compromised websites. Attackers try to take advantage of the site resources to promote spam, distribute other malware/backdoors, and perform…
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  • Website Malware Infections
  • WordPress Security

JavaScript Injections Leads to Tech Support Scam

  • Krasimir Konov
  • February 9, 2017
During a recent malware investigation, we found some interesting obfuscated Javascript code. This code pretends to appear as part of the popular AddThis social sharing…
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Labs Note
  • Sucuri Labs

Magento Login and Credentials Stealer

  • Krasimir Konov
  • December 13, 2016
Lately we’ve been dealing with an increase in attacks against ecommerce platforms. Attackers usually choose this type of solution (like Magento & others) because of…
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Labs Note
  • Sucuri Labs

Hidden iframe Injected into WordPress core file

  • Krasimir Konov
  • December 6, 2016
Injecting malware into core files of CMS installations is one of the techniques attackers use. From the user’s perspective, it is easier to detect and…
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