Ransom:Win32/Korasom.A

What is Ransom:Win32/Korasom.A infection?

In this article you will discover concerning the meaning of Ransom:Win32/Korasom.A and its adverse influence on your computer system. Such ransomware are a form of malware that is elaborated by on-line fraudulences to demand paying the ransom money by a victim.

In the majority of the cases, Ransom:Win32/Korasom.A infection will certainly instruct its victims to start funds move for the purpose of reducing the effects of the amendments that the Trojan infection has introduced to the sufferer’s gadget.

Ransom:Win32/Korasom.A Summary

These alterations can be as adheres to:

• Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
• Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
• A process attempted to delay the analysis task.;
• At least one IP Address, Domain, or File Name was found in a crypto call;
• The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Detects Sandboxie through the presence of a library;
• Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
• Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
  C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

  The registry run keys perform the same action, and can be located in different locations:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
• Creates a copy of itself;
• Attempts to create or modify system certificates;
• Attempts to interact with an Alternate Data Stream (ADS);
• Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
• Ciphering the records found on the victim’s hard disk — so the victim can no longer utilize the data;
• Preventing regular access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Ransom:Win32/Korasom.A

The most typical networks whereby Ransom:Win32/Korasom.A are infused are:

• By means of phishing emails;
• As an effect of individual winding up on a source that holds a destructive software application;

As quickly as the Trojan is successfully injected, it will either cipher the data on the target’s computer or prevent the device from operating in an appropriate way – while additionally positioning a ransom note that discusses the demand for the targets to effect the repayment for the objective of decrypting the documents or bring back the file system back to the first condition. In the majority of circumstances, the ransom money note will certainly come up when the customer restarts the PC after the system has actually already been harmed.

Ransom:Win32/Korasom.A distribution networks.

In various corners of the world, Ransom:Win32/Korasom.A expands by jumps and bounds. Nevertheless, the ransom money notes and also tricks of extorting the ransom quantity might vary depending upon particular local (local) setups. The ransom notes as well as techniques of extorting the ransom money quantity may differ depending on particular local (regional) setups.

For example:

Faulty notifies about unlicensed software.

In particular areas, the Trojans frequently wrongfully report having spotted some unlicensed applications made it possible for on the sufferer’s device. The sharp then requires the user to pay the ransom money.

Faulty declarations regarding unlawful material.

In nations where software piracy is less prominent, this method is not as reliable for the cyber frauds. Conversely, the Ransom:Win32/Korasom.A popup alert might falsely claim to be deriving from a police organization and also will certainly report having located child porn or other illegal data on the gadget.

Ransom:Win32/Korasom.A popup alert might falsely assert to be deriving from a regulation enforcement organization and also will report having situated child porn or various other illegal data on the device. The alert will similarly contain a requirement for the user to pay the ransom.

Technical details

File Info:
crc32: D899CF82md5: c2300aac0f22062b057df333b063d253name: C2300AAC0F22062B057DF333B063D253.mlwsha1: 1c1d96dcd6d96b25c69412952b859d9b8c0f39a2sha256: a1f4b808d214c5079837c608757a09972c5353fedbdf68b72d39fc8bf76cc4a4sha512: 1ccfe0853468cafc99aafac2f4f82ea9c5683dfc97f131178007072e732bad77c6964b74bb0c5410d31e8e38f07110866449da745811c64061e30a999435e6c2ssdeep: 12288:9I2QmOMcSO7yLN+6jEw9z+yI8yHjV7uikFg:9d7OMcN7yLNbj3Z+LDlubgtype: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
Version Info:
0: [No Data]

Ransom:Win32/Korasom.A also known as:

GridinSoft	Trojan.Ransom.Gen
K7AntiVirus	Trojan ( 00510e4a1 )
Elastic	malicious (high confidence)
DrWeb	Trojan.DownLoader25.3535
Cynet	Malicious (score: 100)
ALYac	Trojan.Ransom.Karo
Cylance	Unsafe
Zillya	Trojan.GenericKD.Win32.63277
Sangfor	Trojan.Win32.Save.a
CrowdStrike	win/malicious_confidence_100% (W)
Alibaba	Trojan:Win32/TorJok.ba17be30
K7GW	Trojan ( 00510e4a1 )
Cybereason	malicious.c0f220
Cyren	W32/Trojan.COZ.gen!Eldorado
Symantec	Ransom.Karo
ESET-NOD32	a variant of MSIL/Filecoder.IH
APEX	Malicious
Avast	Win32:Malware-gen
ClamAV	Win.Ransomware.Karo-6331638-1
Kaspersky	Trojan.Win32.TorJok.g
BitDefender	Gen:Heur.MSIL.Bladabindi.1
NANO-Antivirus	Trojan.Win32.TorJok.eqlfxd
ViRobot	Trojan.Win32.S.Karo.720384.A
SUPERAntiSpyware
MicroWorld-eScan	Gen:Heur.MSIL.Bladabindi.1
Tencent	Win32.Trojan.Torjok.Svgq
Ad-Aware	Gen:Heur.MSIL.Bladabindi.1
Sophos	Mal/Generic-R + Mal/Karo-A
BitDefenderTheta	Gen:NN.ZemsilF.34628.Rm0@a0V@Gdo
VIPRE	Trojan.Win32.Generic!BT
TrendMicro	Ransom_KARO.A
McAfee-GW-Edition	BehavesLike.Win32.Generic.bc
FireEye	Gen:Heur.MSIL.Bladabindi.1
Emsisoft	Trojan-Ransom.Karo (A)
SentinelOne	Static AI – Malicious PE
Jiangmin	Trojan.TorJok.m
Webroot	W32.Trojan.Gen
Avira	HEUR/AGEN.1123483
eGambit	Trojan.Generic
Antiy-AVL	Trojan/Win32.TorJok
Kingsoft	Win32.Troj.GenericKD.v.(kcloud)
Microsoft	Ransom:Win32/Korasom.A
Arcabit	Trojan.MSIL.Bladabindi.1
AegisLab	Trojan.Win32.TorJok.4!c
GData	Gen:Heur.MSIL.Bladabindi.1
AhnLab-V3	Trojan/Win32.TorJok.C2029865
McAfee	Trojan-FNHF!C2300AAC0F22
MAX	malware (ai score=100)
VBA32	Trojan.TorJok
Malwarebytes	Ransom.Karo
Panda	Trj/GdSda.A
TrendMicro-HouseCall	Ransom_KARO.A
Rising	Trojan.Filecoder!8.68 (CLOUD)
Ikarus	Trojan.MSIL.Filecoder
Fortinet	MSIL/Filecoder.IH!tr.ransom
AVG	Win32:Malware-gen
Paloalto	generic.ml
Qihoo-360	Win32/Ransom.Generic.HwMAaAIA

How to remove Ransom:Win32/Korasom.A virus?

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">².

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Download GridinSoft Anti-Malware

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

Press “Install” button.

Once installed, Anti-Malware will automatically run.

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Ransom:Win32/Korasom.A files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom:Win32/Korasom.A you can always ask me in the comments for getting help.

References

1. GridinSoft Anti-Malware Review from HowToFix site:
2. More information about GridinSoft products: