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CATEGORY ARCHIVES: cyber-security

Watch Out for THIS Malicious Gift Card

 

When people imagine threat actors tricking victims into installing malware, the first thing that comes to mind is probably email phishing or typosquatted domains. These days, digital attack vectors are so easy to deploy that physical vectors may even get a chance to fly under the radar.

In a recent campaign uncovered by Trustwave, the criminal threat group FIN7 mailed USB drives serving an unknown malware strain disguised as a free Best Buy gift card offering. The letter mailed with the USB drive states that the retail giant is sending out gift cards to its loyal customers, and the gifted credit can be used to buy products from a specific list that is found on the enclosed USB stick.

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A Special Message to CrowdStrike MyDNS Users

In the coming days, CrowdStrike will formally end-of-life their DNS service that many customers are using. This service takes Crowdstrike intelligence and puts it into a CrowdStrike-managed DNS resolver to protect against advanced threats that they are tracking. When this service is retired, you will no longer have protection at that layer. As an important note, there are many classes of devices that endpoint protection do not work on (medical devices, IoT, etc) but by using DNS, you can still provide a strong layer of protection.

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ThreatSTOP Securing the New Work from Home Workforce For Free

Photo Cred: Forbes

Many companies have gone completely remote, and had to do it quickly in light of current events, but that doesn’t mean the need to secure company data has diminished. As more workers are accessing secure files and applications from home, there is an increased need for organizations to be thinking about how to secure those devices that are accessing that information. We have already seen evidence that criminals are trying to take advantage of this situation to launch attacks against companies, and employees working from home without the security protections of the company network are targets for opportunistic attacks.

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Cyberattackers Exploit Coronavirus Frenzy in Phishing Email Campaign

 

With the Coronavirus death toll constantly on the rise, people are becoming more and more panicked. It seems that almost everyone these days is thirsty for any information they can get on how to avoid the deadly virus, creating a tremendous opportunity for cyber attackers to exploit these fears and steal personal information and credentials.

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ThreatSTOP Premium Feed Spotlight Series: Level Up Your Malvertising Protection with The Media Trust Premium Threat Intelligence Feed

Most malware is often delivered from otherwise legitimate sites. Sometimes this occurs via compromising existing websites, but more often than not, it is by using existing advertising networks as a means to ultimately deliver malware. Quite simply, the attacker buys impressions via existing channels and uses a variety of malvertising tricks to either directly compromise the web browser, or at the least trick the user to installing the malware. This specialized form of malware delivery requires a specialized collection methodology to detect such attacks.

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ThreatSTOP Premium Feed Spotlight Series: Level Up Your Protection with ThreatSTOP NOD, Powered By Farsight

One of the chief problems in cybersecurity is the inherent reactivity of most forms of defense. An attack has to be observed, analyzed and reverse-engineered. THEN, protection can be developed. This means attackers are successful, and inside environments, for a period of time before the attack is noticed, before the indicators for that attack can be extracted, and before a policy can be disseminated to stop it.

There has been a wide variety of research in recent years around this problem. How to speed up the cycle to recognize attacks and to potentially get out in front of attackers to block them before the attacks start. Both my own PhD research and other researchers have noticed that one attribute that is overwhelmingly an indicator of maliciousness in DNS is “newness,” that is to say, the newer a domain is, the more likely that it is bad. More importantly, when a domain is new and otherwise benign, it is rarely in meaningful use except by the organization that’s setting up whatever will go there.

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US Heightens Online Attacks on Russian Power Grid: How DNS Can Protect Critical US Infrastructure

In retaliation for ongoing attacks against US interests and to be a deterrent against future cyberattacks, the United States has been penetrating Russian power and industrial systems according to recent reporting in the New York Times. There have been multiple articles about attacks on critical infrastructure and attempts to penetrate systems in this space. In the US, no breach has been reported to lead to a wide spread outage, but there has been an increasing level of concern.

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Upgraded JasperLoader Infecting Machines with New Targets & Functional Improvements: What You Need to Know

 

A few months ago, JasperLoader (a new malware loader) emerged, infecting systems with various malware payloads, such as the Gootkit Banking Trojan. After a short, initial campaign, the threat actors behind the malware halted their activity and JasperLoader went off the radar for a while. However, since late May, a new and upgraded version of JasperLoader has been spotted infecting machines across Europe.

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Georgia Tech Data Breach: How to Keep Information Secure in Open University Environments

Georgia Tech recently notified almost 1.3 million people about a potential breach of sensitive data, and in some cases, including a social security number. Over a four month period, there was a vulnerable server that allowed people to enumerate records on a back-end database, allowing the exfiltration of sensitive information. While universities are seen as more open environments, they do have sensitive information they have to protect.

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Think Mirai is Gone? Think Again. It’s Alive & Active. Here's What You Need to Know.

Between March 2 - 5, we detected a significant increase in scanning activities over Tenet ports via the target, ''NoThink! Telnet HoneyPot – IPs," provided by NoThink. To put this in perspective, the magnitude includes an increase of 4,000 IPs to about 130,000 IPs that were a part of the scanning on telnet ports, as presented in Figure 1 below.

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