Trojan:Win32/Lethic.B

Written by Robert Bailey

What is Trojan:Win32/Lethic.B infection?

In this short article you will certainly discover about the meaning of Trojan:Win32/Lethic.B and its negative impact on your computer system. Such ransomware are a type of malware that is clarified by on-line fraudulences to demand paying the ransom money by a victim.

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Most of the cases, Trojan:Win32/Lethic.B ransomware will instruct its targets to initiate funds move for the function of counteracting the changes that the Trojan infection has presented to the target’s tool.

Trojan:Win32/Lethic.B Summary

These alterations can be as complies with:

  • Executable code extraction;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • Creates RWX memory;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Unconventionial language used in binary resources: Saami;
  • Detects the presence of Wine emulator via function name;
  • Detects SunBelt Sandbox through the presence of a library;
  • Detects Avast Antivirus through the presence of a library;
  • Deletes its original binary from disk;
  • A system process is generating network traffic likely as a result of process injection;
  • Installs itself for autorun at Windows startup;
  • Creates a hidden or system file;
  • Checks the version of Bios, possibly for anti-virtualization;
  • Detects VirtualBox through the presence of a device;
  • Detects VirtualBox through the presence of a registry key;
  • Creates a copy of itself;
  • Ciphering the files located on the victim’s hard disk drive — so the target can no longer utilize the data;
  • Preventing routine access to the target’s workstation;

Trojan:Win32/Lethic.B

The most normal networks where Trojan:Win32/Lethic.B Ransomware are injected are:

  • By methods of phishing emails;
  • As an effect of user winding up on a resource that hosts a malicious software;

As soon as the Trojan is successfully injected, it will either cipher the data on the sufferer’s PC or avoid the device from operating in a correct fashion – while additionally putting a ransom money note that discusses the demand for the targets to impact the payment for the function of decrypting the files or recovering the data system back to the preliminary problem. In many circumstances, the ransom note will show up when the customer reboots the PC after the system has already been damaged.

Trojan:Win32/Lethic.B distribution channels.

In numerous corners of the globe, Trojan:Win32/Lethic.B grows by leaps and also bounds. However, the ransom notes as well as tricks of extorting the ransom quantity might differ depending on certain local (regional) settings. The ransom notes and methods of extorting the ransom amount might differ depending on certain neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software application.

    In specific locations, the Trojans often wrongfully report having actually discovered some unlicensed applications allowed on the target’s device. The sharp then requires the user to pay the ransom money.

    Faulty declarations concerning illegal web content.

    In countries where software program piracy is much less preferred, this approach is not as effective for the cyber frauds. Alternatively, the Trojan:Win32/Lethic.B popup alert might incorrectly claim to be originating from a police institution as well as will certainly report having situated kid porn or various other unlawful information on the tool.

    Trojan:Win32/Lethic.B popup alert might falsely declare to be obtaining from a regulation enforcement institution and also will certainly report having located kid porn or other illegal data on the device. The alert will similarly consist of a need for the user to pay the ransom.

Technical details

File Info:

crc32: B65C069A
md5: 8ce41ec16f86a37da3d3f6c0fdb500bc
name: 8CE41EC16F86A37DA3D3F6C0FDB500BC.mlw
sha1: e5642f6e219d30c76f94119043853090f2e88381
sha256: d93117351b62f7fe0c130efcf5ea418d78109be9187ff79472295f78515371ee
sha512: 1636a3525b906499325f65c7474938949ff6bbb9358eec2217765c45e1c9cb7b8548b9ee8e01a0fcb4bbb15dabe5b37a0becd3f554f9d67713982cf0ce92075f
ssdeep: 3072:4C1g0exJrDwFyIQYg/EcYzK/s1sEtAg0FuntBNpXELRIxe+w80AMAEhOSDr2K:5WtzEFWscR/sPAOnzTewkdDrL
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Lethic.B also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.FamVT.RazyNHmC.Trojan
K7AntiVirus Trojan ( 004df3301 )
Lionic Trojan.Multi.Generic.4!c
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader19.35750
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Tescrypt.A4
ALYac Trojan.Lethic.Gen.14
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Trojan:Win32/Kryptik.5e4db04c
K7GW Trojan ( 004df3301 )
Cybereason malicious.16f86a
Baidu Win32.Trojan.Kryptik.vz
Symantec Trojan Horse
ESET-NOD32 a variant of Win32/Kryptik.EPEN
APEX Malicious
Avast Win32:Dorder-W [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Lethic.Gen.14
NANO-Antivirus Trojan.Win32.Lethic.eanhof
MicroWorld-eScan Trojan.Lethic.Gen.14
Tencent Win32.Trojan.Generic.Eflc
Ad-Aware Trojan.Lethic.Gen.14
Sophos Mal/Wonton-BZ
Comodo TrojWare.Win32.Droma.EQJ@6b1t5k
BitDefenderTheta AI:Packer.569081D621
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CRYPTESLA.SMK1
McAfee-GW-Edition BehavesLike.Win32.Dropper.ch
FireEye Generic.mg.8ce41ec16f86a37d
Emsisoft Trojan.Lethic.Gen.14 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Bitman.ik
Avira HEUR/AGEN.1128847
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Generic.ASMalwS.1739E6A
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Trojan:Win32/Lethic.B
Arcabit Trojan.Lethic.Gen.14
SUPERAntiSpyware Ransom.Filecoder/Variant
GData Trojan.Lethic.Gen.14
AhnLab-V3 Trojan/Win32.Teslacrypt.C1338882
McAfee Ransom-Tescrypt!8CE41EC16F86
MAX malware (ai score=100)
VBA32 BScope.Backdoor.IRC.NgrBot
Malwarebytes Malware.AI.3962514342
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_CRYPTESLA.SMK1
Rising Trojan.Generic@ML.100 (RDML:3q8JXfa/hNt4l0qiniFyaA)
Yandex Trojan.PR.Lethic!TZtZsA6WKJ8
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.FXWS!tr
AVG Win32:Dorder-W [Trj]
Paloalto generic.ml

How to remove Trojan:Win32/Lethic.B virus?

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 GridinSoft1

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

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 Trojan:Win32/Lethic.B 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan:Win32/Lethic.B you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: http://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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