Posts Tagged: security


Spamvertised ‘Royal Mail Shipping Advisory’ themed emails serve malware

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British users, beware! Cybercriminals are currently mass mailing millions of emails impersonating the Royal Mail Service in an attempt to trick users into executing the malicious attachment found in the email. Once they do so, the malware opens a backdoor on the targeted hosts allowing cybercriminals to take complete control over the infected PC. More details:

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Spamvertised ‘Fwd: Scan from a Hewlett-Packard ScanJet’ emails lead to Black Hole exploit kit

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Over the last couple of hours, cybercriminals have started spamvertising millions of emails pretending to be coming from HP ScanJet scanner, in an attempt to trick end and and corporate users into downloading and viewing the malicious .html attachment. Upon viewing, the document loads the invisible iFrame script, ultimately redirecting the user to a landing URL courtesy of the Black Hole web malware exploitation kit. More details:

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Spamvertised ‘Federal Tax Payment Rejected’ themed emails lead to Black Hole exploit kit

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Remember the IRS (Internal Revenue Service) themed malicious campaign profiled at Webroot’s Threat Blog earlier this month? Over the past 24 hours, the cybercriminals behind the campaign resumed mass mailing of the same IRS email template, exposing millions of users to the threats posed by the social engineering driven campaign. More details:

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Cybercriminals spamvertise bogus greeting cards, serve exploits and malware

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Think you’ve received an online greeting card from 123greetings.com? Think twice! Over the past couple of days, cybercriminals have spamvertised millions of emails impersonating the popular e-card service 123greetings.com in an attempt to trick end and corporate users into clicking on client-side exploits and malware serving links, courtesy of the Black Hole web malware exploitation kit. What’s so special about this campaign? Can we connect it to previously spamvertised campaigns profiled at Webroot’s Threat Blog? Let’s find out. More details:

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IRS themed spam campaign leads to Black Hole exploit kit

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Recently, cybercriminals launched yet another massive spam campaign, this time impersonating the Internal Revenue Service (IRS) in an attempt to trick tax payers into clicking on a link pointing to a bogus Microsoft Word Document. Once the user clicks on it, they are redirected to a Black Hole exploit kit landing URL, where they’re exposed to the client-side exploits served by the kit. More details:

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Cybercriminals impersonate AT&T’s Billing Service, serve exploits and malware

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Cybercriminals have launched yet another massive spam campaign, this time impersonating AT&T’s Billing Center, in an attempt to trick end and corporate users into downloading a bogus Online Bill. Once gullible and socially engineered users click on any of the links found in the malicious emails, they’re automatically redirected to a Black Hole exploit kit landing URL, where they’re exposed to client-side exploits, which ultimately drop a piece of malicious software on the affected hosts. More details:

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Millions of spamvertised emails lead to W32/Casonline

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Thanks to a mature monetization model introduced by vendors of bogus online gambling software, cybercriminals continue mass mailing millions of emails in an attempt to earn revenue for each and every new installation of the promoted software. In this post, I’ll profile several prolific spam campaigns attempting to trick users into visiting a bogus web site, and downloading a copy of the potentially unwanted application (PUA) most commonly known as W32/Casonline. More details:

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Ongoing spam campaign impersonates LinkedIn, serves exploits and malware

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Remember the LinkedIn exploits and malware serving campaigns which I profiled in March, and May? Over the past 24 hours, cybercriminals launched the most recent spam campaign impersonating LinkedIn, in an attempt to trick LinkedIn’s users into clicking on the client-side exploits and malware serving links found in the emails. More details:

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Spamvertised ‘PayPal has sent you a bank transfer’ themed emails lead to Black Hole exploit kit

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Sticking to their well proven social engineering tactics consisting of systematic rotation of the abused brands, cybercriminals are currently spamvertising millions of emails impersonating PayPal, in an attempt to trick end and corporate users into interacting with the malicious campaign. Once the interaction takes place, users are exposed to the client-side exploits served by the Black Hole exploit kit, currently the market share leader within the cybercrime ecosystem. More details:

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