Troj/PDFJS-ADE

Posted: March 20, 2013

Threat Metric

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The following fields listed on the Threat Meter containing a specific value, are explained in detail below:

Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.

Detection Count: The collective number of confirmed and suspected cases of a particular malware threat. The detection count is calculated from infected PCs retrieved from diagnostic and scan log reports generated by SpyHunter.

Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.

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Threat Level:	9/10
Infected PCs:	110

First Seen:	March 20, 2013
Last Seen:	June 16, 2022
OS(es) Affected:	Windows

Troj/PDFJS-ADE is a Trojan downloader that connects to an external server for downloading and installing malicious software automatically. Attacks linked to Troj/PDFJS-ADE are prominently associated with misleading e-mails that use fake news articles with European themes (such as the Cyprus bank bailout or the papal election) to encourage victims to click on their malicious links. These links redirect you to a Blackhole Exploit Kit, which launches attacks a variety of potential system vulnerabilities through components like Troj/PDFJS-ADE. Besides the standard defenses against BEK-based attacks, SpywareRemove.com malware experts suggest that you refuse to follow links like the ones noted above unless you absolutely trust the source, and navigate to trustworthy sites by typing the appropriate web address.

When a Fake 'CNN' Delivers Trojans to Your Mailbox

Troj/PDFJS-ADE is part of an ongoing campaign of spam e-mail attacks that borrow the graphical design of a CNN news notification to lend an air of legitimacy to their messages. So far, these e-mail messages have limited themselves to popular news events from Europe, with the latest templates discussing the controversial bailout plan for Cyprus. However, the news that supposedly is being offered up on a hot plate actually contains more than a trace of poison, with the enclosed links redirecting victims to websites hosting the Blackhole Exploit Kit.

The Blackhole Exploit Kit, or BEK, scans your PC for appropriate software versions that can be attacked through various vulnerabilities, including both outdated ones and zero-day ones (the latter of which, SpywareRemove.com malware experts emphasize, cannot be blocked by installing security patches). Troj/PDFJS-ADE is one of the primary components that BEK uses, with the ultimate result being the installation of malicious software onto your PC. Troj/PDFJS-ADE requires both Adobe software and JavaScript vulnerabilities to pull its attack off, whereas one of its counterparts, Troj/SwfExp-BN, can make do with Flash.

There aren't any symptoms of this attack, so if you've clicked on a link that resembles the above description, SpywareRemove.com malware experts advise you to assume your computer is infected.

Why Being Up-To-Date Means a Big Boost in Safety from Troj/PDFJS-ADE

As noted earlier in this article, Troj/PDFJS-ADE and Blacole both require appropriate software vulnerabilities before they can install malware onto your PC. For this reason, SpywareRemove.com malware researchers stress the proper installation of security patches as soon as they're available, which can drastically lower the amount of vulnerabilities that can be utilized for such drive-by-download assaults. Nonetheless, patching all of your software never should be considered a perfect form of defense against these attacks, and you never should trust links from unusual e-mails or other sources of notable suspicion.

If your PC has been exposed to web content associated with Troj/PDFJS-ADE's attacks, anti-malware software generally should be employed immediately. Payloads linked to Blackhole Exploit Kits may exhibit obvious symptoms (such as the fake alerts of a Police Ransomware Trojan) or zero symptoms (in the case of a banking Trojan or other types of spyware), and deleting Troj/PDFJS-ADE or Troj/PDFJS-ADE's payload by yourself is inadvisable unless, of course, you're a professional in PC security.

Use SpyHunter to Detect and Remove PC Threats

If you are concerned that malware or PC threats similar to Troj/PDFJS-ADE may have infected your computer, we recommend you start an in-depth system scan with SpyHunter. SpyHunter is an advanced malware protection and remediation application that offers subscribers a comprehensive method for protecting PCs from malware, in addition to providing one-on-one technical support service.

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Why can't I open any program including SpyHunter? You may have a malware file running in memory that kills any programs that you try to launch on your PC. Tip: Download SpyHunter from a clean computer, copy it to a USB thumb drive, DVD or CD, then install it on the infected PC and run SpyHunter's malware scanner.

Technical Details

Additional Information

The following messages's were detected:

#	Message
1	BBC-Email: Bank of America happy of Cyprus Central Bank Warns of Capital Flight
2	BBC-Email: Cyprus 'Bank Raid' by Euro Banks
3	BBC-Email: Cyprus Bank-Levy Passage in Doubt as EU Shows Aggression
4	BBC-Email: Cyprus already confirmed one time tax withdrawal TODAY!
5	BBC-Email: Cyprus banks shut extended to Monday
6	BBC-Email: Cyprus can amend bailout terms
7	BBC-Email: Cyprus decided to rise bank tax up to 15% for Corporate sector
8	BBC-Email: Cyprus effect on stocks likely long-term
9	BBC-Email: Cyprus government today accepted one time bank tax withdrawal but higher than expected
10	BBC-Email: Cyprus races to rework savings tax after closing banks till Thursday
11	BBC-Email: Cyprus rises tax value and confirmed one time withdrawal!
12	BBC-Email: EU wants rise of Cyprus bank levy
13	BBC-Email: Several countries' deposits may be excluded from Cyprus Bank Tax, Why? We got a draft.
14	BBC-Email: The Cyprus eurozone bailout conditions are bank robbery, 15%!!!
15	BBC-Email: US banks hurt by Cyprus news
16	BBC-Email: USA government decided to follow Cyprus and rise deposit taxes!!!

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Troj/PDFJS-ADE

Threat Metric

When a Fake 'CNN' Delivers Trojans to Your Mailbox

Why Being Up-To-Date Means a Big Boost in Safety from Troj/PDFJS-ADE

Use SpyHunter to Detect and Remove PC Threats

Technical Details

Additional Information

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SpyHunter Free Trial: Important Terms & Conditions

SpyHunter Purchase Details

General Terms