SecureList

OCTOBER 25, 2023

Introduction It’s just another cryptocurrency miner… Nobody would even suspect the mining malware was merely a mask, masquerading behind an intricate modular framework that supports both Linux and Windows. This malware employed a custom EternalBlue SMBv1 exploit to infiltrate its victims’ systems.

Malware 107

Malware DNS Encryption Cryptocurrency 107

Security Affairs

AUGUST 10, 2020

An attacker could use $300 worth of off-the-shelf equipment to eavesdrop and intercept signals from satellite internet communications. The academic researcher James Pavur, speaking at Black Hat 2020 hacking conference , explained that satellite internet communications are susceptible to eavesdropping and signal interception.

Internet 93

Internet Internet Advertising Encryption 93

SecureList

JUNE 5, 2023

Satacom downloader, also known as LegionLoader, is a renowned malware family that emerged in 2019. It is known to use the technique of querying DNS servers to obtain the base64-encoded URL in order to receive the next stage of another malware family currently distributed by Satacom.

Cryptocurrency 78

Cryptocurrency DNS Malware Encryption 78

SecureList

MARCH 13, 2024

This time, a similar threat has affected users of one of the most popular search engines in the Chinese internet. The downloaded applications have several differences from the original versions, and the malicious Linux and macOS versions are similar in functionality. ap-hongkong[.]myqcloud[.]com. transferusee[.]com/onl/mac/<md5_hash>

DNS 94

DNS Advertising Engineering Internet 94

Krebs on Security

MARCH 28, 2021

New data suggests someone has compromised more than 21,000 Microsoft Exchange Server email systems worldwide and infected them with malware that invokes both KrebsOnSecurity and Yours Truly by name. But Watson said they don’t know how many of those systems also ran the secondary download from the rogue Krebsonsecurity domain.

Hacking 352

Hacking Cybercrime DNS Antivirus 352

SecureWorld News

MARCH 29, 2024

Malvertising acts as a vessel for malware propagation. To set such a stratagem in motion, cybercriminals poison legitimate websites with ads that lead to shady URLs or download malicious code camouflaged as something harmless. One of the biggest pitfalls with malvertising is how difficult it can be to detect.

Cybercrime 83

Cybercrime Advertising Engineering Antivirus 83

Security Affairs

JANUARY 24, 2019

A still ongoing spam campaign that has been active during the last months has been distributing the Redaman banking malware. Experts at Palo Alto Networks continue to monitor an ongoing spam campaign that has been distributing the Redaman banking malware. It throws an exception and exits if any of those files are found.

Banking 85

Banking Malware Advertising DNS 85

Webroot

MARCH 29, 2021

An endpoint DNS solution could have stopped the Trojanized Orion version by refusing to resolve the domain names of the command-and-control servers, again disrupting the infection to the point that no real damage could be done. Every employee’s home network has a different set of security protocols and internet use is unregulated.

Hacking 116

Hacking DNS Firewall Malware 116

Security Affairs

JANUARY 25, 2021

Zscaler’s research team recently spotted a Linux-based malware family, tracked as DreamBus botnet, targeting Linux servers. Researchers at Zscaler’s ThreatLabZ research team recently analyzed a Linux-based malware family, tracked as DreamBus Botnet, which is a variant of SystemdMiner. ” reads the post published by Zscaler.

Cryptocurrency 141

Cryptocurrency Malware DNS Passwords 141

Krebs on Security

JULY 18, 2022

For the past seven years, an online service known as 911 has sold access to hundreds of thousands of Microsoft Windows computers daily, allowing customers to route their Internet traffic through PCs in virtually any country or city around the globe — but predominantly in the United States. THE INTERNET NEVER FORGETS.

VPN 304

VPN Computers and Electronics Antivirus Software 304

Security Affairs

DECEMBER 19, 2022

The botnet was involved in stealing users’ credentials and data, mining cryptocurrencies abusing victims’ resources, and setting up proxies to funnel other people’s internet traffic through infected machines and routers. Botnet operators use to spread the malware via cracked or pirated software and pay-per-install (PPI) schemes.

DNS 98

DNS Antivirus Cryptocurrency Software 98

Security Affairs

MAY 11, 2023

. “Successful exploits could allow attackers to monitor users’ internet activity, highjack internet connections and redirect traffic to malicious websites or inject malware into network traffic. “NETGEAR strongly recommends that you download the latest firmware as soon as possible.”

Hacking 95

Hacking Firmware Authentication DNS 95

eSecurity Planet

AUGUST 8, 2022

The signature-based email authentication technique called DKIM merges the specifications for domain keys and identified-internet-mail specifications. A public key is stored with the Domain Name System (DNS) for download by any email server receiving emails with the encrypted digital signature. DMARC Implementation and Fees.

DNS 110

DNS Phishing Authentication Marketing 110

Security Affairs

OCTOBER 22, 2021

The FiveSys rootkit uses the same technique to remain under the radar, it is very similar to the Undead malware and likely originate from China where is used to target domestic games. The rootkit was used by threat actors to redirect internet traffic to a custom proxy server. PAC fle, hence the name probably). Pierluigi Paganini.

Malware 110

Malware DNS Internet Internet 110

Security Affairs

JANUARY 19, 2021

“In all the attacks involving these CVEs, the attacker’s first move is to try running different syntaxes of OS commands to download and execute a Python script named “out.py”.” “After the script is downloaded and given permissions (using the “chmod” command), the attacker tries to run it using Python 2.

DDOS 140

DDOS DNS Malware Internet 140

eSecurity Planet

JULY 29, 2021

These types of attacks usually involve spoofed emails that attempt to impersonate a legitimate sender and convince the recipient to divulge confidential information or click a link or attachment that’s laced with malware. Smished messages usually contain links that launch a malicious site or download when tapped.

Social Engineering 128

Social Engineering Engineering Phishing DNS 128

eSecurity Planet

DECEMBER 8, 2023

Domain name service (DNS) attacks threaten every internet connection because they can deny, intercept, and hijack connections. With the internet playing an increasing role in business, securing DNS plays a critical role in both operations and security. Everything You Need to Know.

DNS 103

DNS DDOS Firewall Architecture 103

SiteLock

AUGUST 27, 2021

This is a huge security win for WordPress.com users and the Internet at large. With a simple DNS change and SSL cert approval, SiteLock TrueShield WAF protects sites, WordPress.com or otherwise, from malicious traffic, suspicious bots, scrapers and spam comments. The next upgrade to WordPress.com security is a malware scan.

DNS 52

DNS Firewall Malware Engineering 52

SecureList

JULY 25, 2022

Rootkits are malware implants which burrow themselves in the deepest corners of the operating system. One of our industry partners, Qihoo360, published a blog post about an early variant of this malware family in 2017. This could be achieved through a precursor malware implant already deployed on the computer or physical access (i.e.,

Firmware 144

Firmware DNS Malware Technology 144

SecureList

SEPTEMBER 21, 2023

The first-ever large-scale malware attacks on IoT devices were recorded back in 2008, and their number has only been growing ever since. A successful password cracking enables hackers to execute arbitrary commands on a device and inject malware. Statista portal predicts their number will exceed 29 billion by 2030. Tested, tried.

IoT 86

IoT DDOS Passwords Malware 86

Security Affairs

NOVEMBER 1, 2021

Pink also adopts the DNS-Over-HTTPS ( DoH ) for the distribution of configuration information that’s done either via a project hidden on GITHUB or Baidu Tieba, or via a built-in domain name hard-coded into some of the samples.

Architecture 122

Architecture DDOS Advertising Firmware 122

Security Affairs

OCTOBER 23, 2018

Security experts from Sophos Labs have spotted a new piece of IoT malware tracked as Chalubo that is attempting to recruit devices into a botnet used to launch DDoS attacks. The attackers were using brute-force attacks (using the root:admin credential) on SSH servers to distribute the malware. ” continues the analysis.

IoT 80

IoT DDOS Architecture Malware 80

Security Affairs

NOVEMBER 21, 2019

In October one of the honeypots of the company captured the bot, its downloader , and some bot modules. “Fast forwarded to October 11, 2019, our Anglerfish honeypot captured another suspicious ELF sample, and it turned out to be the Downloader of the previous suspicious ELF sample.” Pierluigi Paganini.

DDOS 80

DDOS System Administration Advertising DNS 80

Security Affairs

APRIL 27, 2020

However, all the original files were replaced by a copy of the malware. The VictoryGate botnet used only subdomains registered at the dynamic DNS provider No-IP to control infected devices. “This will prevent new victims from downloading secondary payloads from the internet. ” ESET concludes.

Advertising 103

Advertising DNS Malware Hacking 103

SecureList

JUNE 2, 2022

In their initial disclosures on this threat actor, TeamT5 identified three malware families: SpyDealer, Demsty and WinDealer. In 2020, we discovered a whole new distribution method for the WinDealer malware that leverages the automatic update mechanism of select legitimate applications. WinDealer is a modular malware platform.

Malware 113

Malware Encryption Social Engineering Telecommunications 113

SecureList

DECEMBER 8, 2022

Just to clarify, the subheading isn’t a normal quote, but a message that Janicab malware attempted to decode in its newest use of YouTube dead-drop resolvers (DDRs). Janicab was first introduced in 2013 as malware able to run on MacOS and Windows operating systems. Janicab 1.2.9a. Janicab 1.1.2. LNK files structure comparison.

Malware 104

Malware DNS Engineering Internet 104

Security Boulevard

FEBRUARY 21, 2023

Or maybe the malicious site pretends to be the home of some well-known software and lets the user download an “update” all on their own (with a little malware added…). For many users, navigating the internet is strictly a matter of using Google and keywords to get where they are going.

Phishing 52

Phishing Software DNS Data breaches 52

Security Affairs

DECEMBER 20, 2018

N051118 ), where the malicious payload was dropped abusing a macro-enabled word document able to download the malicious DLL paylaod. The malware tries to connect to the remote host 149.154.157.104 (EDIS-IT IT) through an encrypted SSL channel, then it downloads other components and deletes itself from the filesystem.

Banking 74

Banking Malware Internet Internet 74

Security Boulevard

OCTOBER 2, 2023

This blog examines the escalating phishing landscape, shortcomings of common anti-phishing approaches, and why implementing a Protective DNS service as part of a layered defense provides the most effective solution. This staggering figure represents more than 59 percent of the losses from the top five most costly internet crimes worldwide.

DNS 64

DNS Phishing Social Engineering Engineering 64

CyberSecurity Insiders

SEPTEMBER 21, 2021

As of August 30, 2021, many malware samples still have zero antivirus (AV) detections and others have low detection rates. 7z to decompress downloaded files. At the end of the execution, the malware deletes any file that has been downloaded. Background. TeamTNT has been one of the most active threat groups since mid 2020.

Cryptocurrency 84

Cryptocurrency Malware Passwords Authentication 84

eSecurity Planet

SEPTEMBER 7, 2021

Or they can package malware that can be directly installed on your machine or come through an email attachment disguised as something trustworthy , like a document or link from your boss. Tracking recent trends in malware code and technique updates. Employee training. Put recovery strategies in place.

Antivirus 127

Antivirus Software Risk Malware 127

eSecurity Planet

FEBRUARY 16, 2021

Malware, short for “malicious software,” is any unwanted software on your computer that, more often than not, is designed to inflict damage. Since the early days of computing, a wide range of malware types with varying functions have emerged. Best Practices to Defend Against Malware. Jump ahead: Adware. RAM scraper.

Malware 105

Malware Adware Spyware Antivirus 105

SecureList

NOVEMBER 26, 2021

The PyInstaller module for Windows contains a script named “Guard” Interestingly, this malware was developed for both Windows and macOS operating systems. The attackers obtain initial access to a system by sending a spear-phishing email to the victim containing a Dropbox download link.

Malware 86

Malware Banking Energy and Utilities Accountability 86

SecureList

JANUARY 13, 2022

The group seems to work more like a unit within a larger formation of Lazarus attackers, with the ability to tap into its vast resources: be it malware implants, exploits, or infrastructure. If the document isn’t blocked from connecting to the internet, it fetches a remote template that is another macro-enabled document.

Cryptocurrency 126

Cryptocurrency Malware Accountability Banking 126

Digital Shadows

JANUARY 30, 2023

The “SocGholish” (aka FakeUpdates) malware distribution framework has presented a gripping tale of intrigue and suspense for ReliaQuest this year. The SocGholish malware distribution network employs social engineering and drive-by compromise to drop malware on endpoints. What Is SocGholish? iex(newobjectnet.webclient).downloadstring('[link]

Social Engineering 40

Social Engineering DNS Engineering Malware 40

McAfee

DECEMBER 22, 2021

This string can force the vulnerable system to download and run a malicious script from the attacker-controlled system, which would allow them to effectively take over the vulnerable application or server. Kinsing comes with multiple shell scripts that download and install the backdoor, miner, and rootkit alter the system itself.

Malware 98

Malware Risk Internet Internet 98

Security Affairs

APRIL 9, 2019

Too many times turned into fully-featured malware implants by unethical hackers and cyber criminals. Exploring the malware code, we detected multiple evidence indication of the possible belonging malware family: LimeRAT. Figure 9: The persistence mechanisms of the malware. Technical Analysis. C2 retrieval.

Malware 72

Malware Advertising DNS Antivirus 72