efax Spam Containing Malware

Published: 2014-06-08
Last Updated: 2014-06-08 22:03:39 UTC
by Guy Bruneau (Version: 1)
11 comment(s)

Beware of efax that may come to your email inbox. This week I receive my first efax spam with a source address of "Fax Message [message@inbound.efax.com]" which contained a link to www.dropbox.com that contained malware. The link has since been removed.


efax Spam

On efax's website, the indicate that you are receiving fax spam to submit the fax via to online form and they "will attempt to prevent further transmission of junk faxes from the source.[2]

[1] http://www.efax.com/help/faq
[2] http://www.efax.com/privacy?tab=reportSpam

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Guy Bruneau IPSS Inc. gbruneau at isc dot sans dot edu

Keywords: efax Malware Spam
11 comment(s)

Comments

What's this all about ..?
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<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure:

<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure. The social networks are not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go.

<a hreaf="https://technolytical.com/">the social network</a> is not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go. The social networks only collect the minimum amount of information required for the service that they provide. Your personal information is kept private, and is never shared with other companies without your permission
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Enter comment here... a fake TeamViewer page, and that page led to a different type of malware. This week's infection involved a downloaded JavaScript (.js) file that led to Microsoft Installer packages (.msi files) containing other script that used free or open source programs.
distribute malware. Even if the URL listed on the ad shows a legitimate website, subsequent ad traffic can easily lead to a fake page. Different types of malware are distributed in this manner. I've seen IcedID (Bokbot), Gozi/ISFB, and various information stealers distributed through fake software websites that were provided through Google ad traffic. I submitted malicious files from this example to VirusTotal and found a low rate of detection, with some files not showing as malware at all. Additionally, domains associated with this infection frequently change. That might make it hard to detect.
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