Troj/ExpJS-N
Threat Scorecard
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EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
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Ranking: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Threat Level: | 90 % (High) |
| Infected Computers: | 4 |
| First Seen: | March 2, 2012 |
| Last Seen: | June 17, 2021 |
| OS(es) Affected: | Windows |
PPC (Pay Per Click) or PPV (Pay Per View) affiliate schemes are fairly common online. They are an easy way for website owners to get back some of their investment. After all, running a website is not a cheap proposition, especially when one considers the hosting fees associated with running a website with high traffic. However, just as there are legitimate PPC and PPV affiliate plans, there are also many that are associated with criminal activity and malware. Troj/ExpJS-N is associated with one of these kinds of malicious PPC schemes. While this is nothing new, it is important for PC security analysts to keep track of these kinds of Black Hat in order to stop criminals in their tracks. Troj/ExpJS-N in particular has been found to attack Russian computer users by using the Black Hole Exploit kit (a known group of exploits and security vulnerabilities) in order to install banking Trojans designed to steal sensitive data like credit card numbers and online bank account passwords.
Table of Contents
Troj/ExpJS-N and Traffbiz
Traffbiz is one of the many unscrupulous marketing companies using criminal methods in order to generate revenue online. For a long time, PC security researchers have tracked the activities of this malicious player in today's malware scene. Basically, Traffbiz contacts website owners and promises to pay them one dollar for every one thousand page views in a PPV scheme that is similar to common online affiliate marketing schemes. However, to keep track of each affiliate, website owners need to add a particular bit of code to their website, which keeps track of each time the web page containing the Traffbiz content is shown. This code will load a script named 'counter' which is a JPG file that typically counts visits.
However, ESG malware analysts have been able to monitor what is really going on and have detected that this innocent counting script is not the only thing that the Traffbiz code loads. Another script loads only for computer users located in the Russian Federation (non-Russian computer users simply receive a blank file). This other script, Troj/ExpJS-N, is actually the Blackhole Exploit kit. Once loaded, Troj/ExpJS-N attempts to exploit several security vulnerabilities at once, attempting to inject a dangerous batch of banking Trojans into the victim's computer system. Curiously, to avoid prosecution, malware makers tend to avoid targeting Russian computers. Troj/ExpJS-N is one of the few malware attacks that specifically targets computers located in this country.
SpyHunter Detects & Remove Troj/ExpJS-N
File System Details
| # | File Name | MD5 |
Detections
Detections: The number of confirmed and suspected cases of a particular threat detected on
infected computers as reported by SpyHunter.
|
|---|---|---|---|
| 1. | output.txt | f68fd05bb4ac045a424b38a1cd983fa8 | 0 |
| 2. | file.html | 1e1add3cef7a25433871ba329c7fa403 | 0 |
| 3. | file.html | 2a00cfecf085f5053c777037b3d8eff4 | 0 |
| 4. | file.html | 3bb8049f6a9a33fbb6aa824244bec7a8 | 0 |
| 5. | file.html | 14fc936de0813c2f4ae5f72802bfcf9b | 0 |
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