Win32/Kryptik.ESRY

What is Win32/Kryptik.ESRY infection?

In this post you will certainly locate regarding the definition of Win32/Kryptik.ESRY and its unfavorable impact 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 sufferer.

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Most of the situations, Win32/Kryptik.ESRY infection will instruct its victims to launch funds move for the function of neutralizing the changes that the Trojan infection has presented to the sufferer’s device.

Win32/Kryptik.ESRY Summary

These modifications can be as follows:

  • 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Compression (or decompression);
  • 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.;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Unconventionial language used in binary resources: Albanian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • Exhibits behavior characteristic of Andromeda/Gamarue malware;
  • Attempts to stop active services;
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • Mimics the file times of a Windows system file;
  • 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 hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to interact with an Alternate Data Stream (ADS);
  • Attempts to modify Explorer settings to prevent hidden files from being displayed;
  • Attempts to modify user notification settings;
  • Ciphering the documents located on the target’s hard disk drive — so the victim can no longer use the information;
  • Preventing routine accessibility 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.

Win32/Kryptik.ESRY

One of the most normal networks whereby Win32/Kryptik.ESRY Ransomware are infused are:

  • By ways of phishing emails;
  • As an effect of user ending up on a source that hosts a destructive software;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the victim’s PC or stop the device from operating in a proper manner – while likewise positioning a ransom note that states the requirement for the targets to impact the settlement for the function of decrypting the records or bring back the data system back to the preliminary condition. In many circumstances, the ransom note will certainly come up when the customer restarts the COMPUTER after the system has actually already been harmed.

Win32/Kryptik.ESRY distribution channels.

In various corners of the globe, Win32/Kryptik.ESRY expands by leaps as well as bounds. However, the ransom notes and techniques of extorting the ransom money amount might differ depending on particular regional (local) settings. The ransom money notes and also techniques of extorting the ransom money quantity might vary depending on specific regional (regional) setups.

Ransomware injection

As an example:

    Faulty informs about unlicensed software.

    In particular locations, the Trojans usually wrongfully report having discovered some unlicensed applications enabled on the victim’s tool. The sharp then requires the customer to pay the ransom.

    Faulty declarations concerning prohibited web content.

    In nations where software application piracy is much less popular, this approach is not as efficient for the cyber scams. Alternatively, the Win32/Kryptik.ESRY popup alert may wrongly claim to be deriving from a police institution and will certainly report having situated youngster pornography or other unlawful information on the gadget.

    Win32/Kryptik.ESRY popup alert might incorrectly assert to be deriving from a legislation enforcement institution as well as will report having located child pornography or other prohibited information on the gadget. The alert will similarly contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 8B216254
md5: 068da7611bcb1bc339e0e114e1630a23
name: 068DA7611BCB1BC339E0E114E1630A23.mlw
sha1: 40a4493655f41ca893bc0b7790e24e9b2809a623
sha256: c278c3f39cbf56ab3f4717852f54d45a2d6af8676163e5280aef0fe90b2ed6d9
sha512: e8f7a4d070bde1067949074897da751719ea35988a2a0d3cf6dbb5612e3d19154fdc9b2223a30568d8734472d34494d0d0afb4d604402f626c92e9b4431d9abe
ssdeep: 3072:/nj12FP1dk0KeUf40knCJXJhJMhpq6SDYHW+kqRJ7:/nCk06oKXJN1DY26p
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9 2013
InternalName: Bosses
FileVersion: 185, 174, 167, 48
CompanyName: FeatherySoft, Inc.
ProductName: Archangels Chimeras
ProductVersion: 226, 74, 165, 176
FileDescription: Applaud

Win32/Kryptik.ESRY also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 004e1aec1 )
Elastic malicious (high confidence)
DrWeb Trojan.Inject2.18392
Cynet Malicious (score: 90)
ALYac Trojan.TeslaCrypt.EY
Cylance Unsafe
Zillya Trojan.CryptGen.Win32.1
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Worm:Win32/Gamarue.dc6d8e1b
K7GW Trojan ( 004e1aec1 )
Cybereason malicious.11bcb1
Symantec Ransom.Safefiles32
ESET-NOD32 a variant of Win32/Kryptik.ESRY
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.TeslaCrypt.EY
NANO-Antivirus Trojan.Win32.Inject.ebgcou
ViRobot Trojan.Win32.Locky.Gen.C
MicroWorld-eScan Trojan.TeslaCrypt.EY
Tencent Malware.Win32.Gencirc.10c063b4
Ad-Aware Trojan.TeslaCrypt.EY
Sophos Mal/Generic-R + Troj/Ransom-CYD
Comodo Malware@#31ufkcmyynx8g
BitDefenderTheta Gen:NN.ZexaF.34628.hq1@a0ml5BkO
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPLOCKY.SM1
McAfee-GW-Edition Gamarue-FDM!068DA7611BCB
FireEye Generic.mg.068da7611bcb1bc3
Emsisoft Trojan.TeslaCrypt.EY (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Waldek.coo
Webroot W32.Trojan.TeslaCrypt
Avira HEUR/AGEN.1123163
eGambit Generic.Malware
Kingsoft Win32.Troj.Tpyn.v.(kcloud)
Microsoft Worm:Win32/Gamarue
Arcabit Trojan.TeslaCrypt.EY
AegisLab Trojan.Win32.Generic.4!c
GData Trojan.TeslaCrypt.EY
TACHYON Trojan/W32.Locky.123497
AhnLab-V3 Win-Trojan/Lockycrypt.Gen
McAfee Gamarue-FDM!068DA7611BCB
MAX malware (ai score=100)
VBA32 BScope.Trojan.Bitrep
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_HPLOCKY.SM1
Rising Worm.Gamarue!8.13B (CLOUD)
Yandex Trojan.GenAsa!0eS1hS/8Mkw
Ikarus Trojan-Ransom.Locky
Fortinet W32/Kryptik.ESPA!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Ransom.Bitman.HgIASOoA

How to remove Win32/Kryptik.ESRY ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft2

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft3.

Download GridinSoft Anti-Malware.

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

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.

Run Setup.exe

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.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/Kryptik.ESRY 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.

GridinSoft Anti-Malware Scanning

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.

GridinSoft Anti-Malware Scan Result

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:

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If the guide doesn’t help you to remove Win32/Kryptik.ESRY you can always ask me in the comments for getting help.

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References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  3. More information about GridinSoft products: https://gridinsoft.com/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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