Posts Categorized: malware


Fake ‘MMS Gallery’ notifications impersonate T-Mobile U.K, expose users to malware

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Over the last two months, we’ve been closely monitoring — and proactively protecting from — the malicious campaigns launched by cybercriminals who are no strangers to the concept of social engineering topic rotation. Their purpose is to extend a campaign’s life cycle, or to generally increase a botnet’s infected population by spamming out tens of thousands of fake emails, exposing users to malicious software. The most recent campaign launched by the same cybercriminal(s), is once again impersonating T-Mobile U.K in an attempt to trick mobile users into thinking that they’ve received a legitimate MMS Gallery notification. In reality though, once the […]

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Cybercriminals impersonate HSBC through fake ‘payment e-Advice’ themed emails, expose users to malware

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HSBC customers, watch what you execute on your PCs. A circulating malicious spam campaign attempts to socially engineer you into thinking that you’ve received a legitimate ‘payment e-Advice’. In reality, once you execute the attachment, your PC automatically joins the botnet operated by the cybercriminal(s) behind the campaign.

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Fake WhatsApp ‘Voice Message Notification’ themed emails expose users to malware

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We’ve just intercepted a currently circulating malicious spam campaign impersonating WhatsApp — yet again — in an attempt to trick its users into thinking that they’ve received a voice mail. Once socially engineered users execute the malicious attachment found in the fake emails, their PCs automatically join the botnet operated by the cybercriminal(s) behind the campaign.

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Fake ‘Annual Form (STD-261) – Authorization to Use Privately Owned Vehicle on State Business’ themed emails lead to malware

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Want to file for mileage reimbursement through a STD-261 form? You may want to skip the tens of thousands of malicious emails currently in circulation, attempting to trick users into executing the malicious attachment. Once downloaded, your PC automatically joins the botnet operated by the cybercriminal(s) behind the campaign, undermining the confidentiality and integrity of the host.

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Malicious multi-hop iframe campaign affects thousands of Web sites, leads to a cocktail of client-side exploits

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Sharing is caring. In this post, I’ll put the spotlight on a currently circulating, massive — thousands of sites affected — malicious iframe campaign, that attempts to drop malicious software on the hosts of unaware Web site visitors through a cocktail of client-side exploits. The campaign, featuring a variety of evasive tactics making it harder to analyze, continues to efficiently pop up on thousands of legitimate Web sites. Ultimately hijacking the legitimate traffic hitting them and  successfully undermining the confidentiality and integrity of the affected users’ hosts.

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Web site of Brazilian ‘Prefeitura Municipal de Jaqueira’ compromised, leads to fake Adobe Flash player

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Our sensors just picked up an interesting Web site infection that’s primarily targeting Brazilian users. It appears that the Web site of the Brazilian Jaqueira prefecture has been compromised, and is exposing users to a localized (to Portuguese) Web page enticing them into installing a malicious version of Adobe’s Flash player. Not surprisingly, we’ve also managed to identify approximately 63 more Brazilian Web sites that are victims to the same infection.

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Low Quality Assurance (QA) iframe campaign linked to May’s Indian government Web site compromise spotted in the wild

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We’ve intercepted a currently trending malicious iframe campaign, affecting hundreds of legitimate Web sites, that’s interestingly part of the very same infrastructure from May, 2013′s analysis of the compromise of an Indian government Web site. The good news? Not only have we got you proactively covered, but also, the iframe domain is currently redirecting to a client-side exploit serving URL that’s offline. Let’s provide some actionable intelligence on the malicious activity that is known to have originated from the same iframe campaign in the past month, indicating that the cybercriminal(s) behind it are actively multi-tasking on multiple fronts.

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Source code for proprietary spam bot offered for sale, acts as force multiplier for cybercrime-friendly activity

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In a professional cybercrime ecosystem, largely resembling that of a legitimate economy, market participants constantly strive to optimize their campaigns, achieve stolen assets liquidity, and most importantly, aim to reach a degree of efficiency that would help them gain market share. Thus, help them secure multiple revenue streams. Despite the increased transparency on the Russian/Easter European underground market — largely thanks to improved social networking courtesy of the reputation-aware cybercriminals wanting to establish themselves as serious vendors — certain newly joining vendors continue being a victim of their market-irrelevant ‘biased exclusiveness’ in terms of the unique value propositon (UVP) presented […]

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Cybercriminals differentiate their ‘access to compromised PCs’ service proposition, emphasize on the prevalence of ‘female bot slaves’

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From Bitcoin accepting services offering access to compromised malware infected hosts and vertical integration to occupy a larger market share, to services charging based on malware executions, we’ve seen multiple attempts by novice cybercriminals to introduce unique value propositions (UVP). These are centered on differentiating their offering in an over-supplied cybercrime-friendly market segment. And that’s just for starters. A newly launched service is offering access to malware infecting hosts, DDoS for hire/on demand, as well as crypting malware before the campaign is launched. All in an effort to differentiate its unique value proposition not only by vertically integrating, but also emphasizing […]

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