Webroot is the advanced security product which offers great security to the users and their devices from internet threat. This software can install through www.webroot.com/safe. In this blog, you will read the types of malware and how you can protect yourself from it.Types of Malware:
Generally, hackers spread malware through an email, they attach the malicious file with email and when the victim opens this email then there device is infected with virus.
Ransomware is the most popular types of malware. In this, hackers install malware in the victim’s device, and lock their device by encrypting their files. To unlock their device and return back the data to the user, hackers demands for ransom.
In this hackers scare the user that their device is infected and they convince them to purchase a fake application. You will see a message while browsing the Web which says “Warning: Your computer is infected!” or “You have a virus!”. Hackers use these tactics, so that you purchase the fake application and with that software they can install malware in your device.
Usually, Worms copy themselves from machine to machine, by exploiting the security weakness in software or in operating system. They don’t need user interaction to function.
Trojans is the harmless applications which trick users into downloading and using them. When the user run it, then they can steal personal data, crash a device, and can also spy on activities.
Adware programs give unwanted advertisements in user’s device or pop-up windows if you are performing a certain action.
How to Protect Yourself From Malware?
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At the end of 2019, Python is one of the fastest-growing programming languages. More than 10% of developers have opted for Python development.
In the programming world, Data types play an important role. Each Variable is stored in different data types and responsible for various functions. Python had two different objects, and They are mutable and immutable objects.
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The Size and declared value and its sequence of the object can able to be modified called mutable objects.
Mutable Data Types are list, dict, set, byte array
The Size and declared value and its sequence of the object can able to be modified.
Immutable data types are int, float, complex, String, tuples, bytes, and frozen sets.
id() and type() is used to know the Identity and data type of the object
a**=str(“Hello python world”)****#str**
Numbers are stored in numeric Types. when a number is assigned to a variable, Python creates Number objects.
Python supports 3 types of numeric data.
int (signed integers like 20, 2, 225, etc.)
float (float is used to store floating-point numbers like 9.8, 3.1444, 89.52, etc.)
complex (complex numbers like 8.94j, 4.0 + 7.3j, etc.)
A complex number contains an ordered pair, i.e., a + ib where a and b denote the real and imaginary parts respectively).
The string can be represented as the sequence of characters in the quotation marks. In python, to define strings we can use single, double, or triple quotes.
# String Handling
#single (') Quoted String
# Double (") Quoted String
# triple (‘’') (“”") Quoted String
In python, string handling is a straightforward task, and python provides various built-in functions and operators for representing strings.
The operator “+” is used to concatenate strings and “*” is used to repeat the string.
'Output : Python python ’
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A campaign that injects malware into the Windows Error Reporting (WER) service to evade detection is potentially the work of a Vietnamese APT group, researchers said.
The attack, discovered on Sept. 17 by researchers at Malwarebytes Threat Intelligence Team, lures its victims with a phishing campaign that claims to have important information about workers’ compensation rights, according to a blog post on Tuesday by researchers Hossein Jazi and Jérôme Segura. Instead, it leads them to a malicious website that can load malware that hides in WER, they said.
“The threat actors compromised a website to host its payload and used the CactusTorch framework to perform a fileless attack, followed by several anti-analysis techniques,” researchers wrote.
WER is the crash-reporting tool of the Microsoft Windows OS, introduced in Windows XP. It’s also included in Windows Mobile versions 5.0 and 6.0.
The service runs the WerFault.exe, which is “usually invoked when an error related to the operating system, Windows features or applications happens,” researchers noted. This makes it a good cloaking mechanism for threat actors, as users wouldn’t likely to suspect any nefarious activity if the service is running, they said.
“When victims see WerFault.exe running on their machine, they probably assume that some error happened, while in this case they have actually been targeted in an attack,” Jazi and Segura wrote.
The use of this evasion tactic is not new, researchers noted, and the technique suggests a connection to the Vietnamese APT32 group, also known as OceanLotus.
“APT32 is one of the actors that is known to use CactusTorch HTA to drop variants of the Denis RAT,” researchers said. Moreover, the domain used to host malicious archives and documents is registered in Ho Chi Minh City, Vietnam, which also points to APT32, researchers noted.
That said, it’s still unclear exactly who is behind the attack because researchers did not access the final payload to examine it extensively, they said.
The attack begins as a ZIP file containing a malicious document, called “Compensation.manual.doc” that threat actors distribute through spear-phishing attacks and which purports to offer information about compensation rights for workers
“Inside we see a malicious macro that uses a modified version of CactusTorch VBA module to execute its shellcode,” researchers wrote. “CactusTorch is leveraging the DotNetToJscript technique to load a .NET compiled binary into memory and execute it from vbscript.”
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The increasingly prevalent GuLoader malware has been traced back to a far-reaching encryption service that attempts to pass as above-board.
An Italian company that sells what it describes as a legitimate encryption utility is being used as malware packer for the cloud-delivered malicious GuLoader dropper, claim researchers. The tool, according a recent investigation, creates GuLoader samples and helps the malware avoid antivirus detection.
For its part, the company claims it has taken steps to prevent bad actors from using its wares for ill.
According to researchers at Check Point, the company identified as CloudEyE is looking to take a piece of the traditional packer and crypter market – a thriving arena that caters to malware authors looking for obfuscation for their wares.
GuLoader is a widespread dropper that compromises targets and then delivers second-stage malware. It’s been constantly updated over the course of 2020, according to Check Point, with new binaries sporting sandbox evasion techniques, code randomization features, command-and-control (C2) URL encryption and additional payload encryption.
“As a result, we can reasonably assume that behind GuLoader there is a major new service” providing various forms of encryption, according to the researchers.
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Researchers have uncovered a threat group launching surveillance campaigns that target victims’ personal device data, browser credentials and Telegram messaging application files. One notable tool in the group’s arsenal is an Android malware that collects all two-factor authentication (2FA) security codes sent to devices, sniffs out Telegram credentials and launches Google account phishing attacks.
Researchers found the threat group, dubbed Rampant Kitten, has targeted Iranian entities with surveillance campaigns for at least six years. It specifically targets Iranian minorities and anti-regime organizations, including the Association of Families of Camp Ashraf and Liberty Residents (AFALR); and the Azerbaijan National Resistance Organization.
The threat group has relied on a wide array of tools for carrying out their attacks, including four Windows info-stealer variants used for pilfering Telegram and KeePass account information; phishing pages that impersonate Telegram to steal passwords; and the aforementioned Android backdoor that extracts 2FA codes from SMS messages and records the phone’s voice surroundings.
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