What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Ransom:Win32/LockScreen.BA infection?

In this post you will locate regarding the meaning of Ransom:Win32/LockScreen.BA as well as its negative influence on your computer. Such ransomware are a type of malware that is specified by online fraudulences to require paying the ransom by a victim.

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In the majority of the instances, Ransom:Win32/LockScreen.BA virus will certainly instruct its sufferers to initiate funds transfer for the objective of counteracting the modifications that the Trojan infection has actually presented to the victim’s tool.

Ransom:Win32/LockScreen.BA Summary

These alterations 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.
  • 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.
  • Unconventionial language used in binary resources: Russian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers found on the sufferer’s hard disk — so the sufferer can no longer utilize the data;
  • Preventing normal access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
z.whorecord.xyz TrojanRansom.Losya
a.tomx.xyz TrojanRansom.Losya


One of the most typical networks where Ransom:Win32/LockScreen.BA Ransomware are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a consequence of customer ending up on a resource that organizes a harmful software program;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the sufferer’s computer or avoid the device from functioning in a correct manner – while also positioning a ransom note that mentions the demand for the sufferers to impact the payment for the purpose of decrypting the files or bring back the documents system back to the preliminary condition. In many circumstances, the ransom note will come up when the client reboots the PC after the system has actually already been harmed.

Ransom:Win32/LockScreen.BA circulation networks.

In numerous corners of the globe, Ransom:Win32/LockScreen.BA expands by jumps and bounds. Nonetheless, the ransom money notes and also methods of extorting the ransom money amount may differ relying on certain regional (local) settings. The ransom notes and techniques of extorting the ransom quantity might vary depending on certain regional (regional) settings.

Ransomware injection

As an example:

    Faulty informs about unlicensed software program.

    In specific locations, the Trojans typically wrongfully report having detected some unlicensed applications allowed on the target’s device. The alert then demands the customer to pay the ransom.

    Faulty declarations regarding illegal material.

    In nations where software application piracy is much less popular, this technique is not as effective for the cyber fraudulences. Conversely, the Ransom:Win32/LockScreen.BA popup alert might wrongly claim to be deriving from a police organization as well as will certainly report having located kid pornography or various other unlawful data on the gadget.

    Ransom:Win32/LockScreen.BA popup alert may falsely declare to be deriving from a regulation enforcement institution as well as will report having situated child pornography or various other prohibited information on the tool. The alert will similarly consist of a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 56FFD17F
md5: a0e9b4f31779376c69aaf232601d62eb
name: A0E9B4F31779376C69AAF232601D62EB.mlw
sha1: 0e323889b3d8ff55de7086bfafb0a6b68c5541e1
sha256: dde00d378a4a0a74096e94e20a954c94d770621bbc74ec0e494343a2e4ffdd55
sha512: 0c606ee83d47ad2d40bac4b460545fdc550e478c74891ccb9624aa3884a83c5396bf40f6f30b627997c07a209b5019327a00ec90828e43f943a5cd06eb67042c
ssdeep: 6144:FET3dI2UsWHd36NqZuHHdSzTFi4DzILnLD:ORzUsY56UZungPg
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Ransom:Win32/LockScreen.BA also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Kazy.18491
FireEye Generic.mg.a0e9b4f31779376c
CAT-QuickHeal TrojanRansom.Losya
ALYac Gen:Variant.Kazy.18491
Cylance Unsafe
VIPRE Packed.Win32.PWSZbot.gen (v)
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( f1000f011 )
BitDefender Gen:Variant.Kazy.18491
K7GW Trojan ( f1000f011 )
CrowdStrike win/malicious_confidence_100% (W)
BitDefenderTheta Gen:NN.ZexaF.34590.omGfaqqbJYf
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.MOS
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Trojan.Losya-22
Kaspersky Trojan-Ransom.Win32.Losya.dd
Alibaba Ransom:Win32/Losya.1f845559
NANO-Antivirus Trojan.Win32.Losya.ipqzy
AegisLab Trojan.Win32.Losya.j!c
Rising Ransom.Losya!8.59CD (CLOUD)
Ad-Aware Gen:Variant.Kazy.18491
Emsisoft Gen:Variant.Kazy.18491 (B)
Comodo Malware@#2uehibaf7qane
F-Secure Trojan.TR/Crypt.XPACK.Gen
DrWeb Trojan.Winlock.2876
TrendMicro Ransom_LockScreen.R002C0DBR21
McAfee-GW-Edition BehavesLike.Win32.Downloader.dc
Sophos Mal/Generic-R + Mal/Zbot-EZ
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Losya.ba
MaxSecure Trojan.Malware.1960287.susgen
Avira TR/Crypt.XPACK.Gen
MAX malware (ai score=100)
Antiy-AVL Trojan/Win32.AGeneric
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/LockScreen.BA
Arcabit Trojan.Kazy.D483B
ZoneAlarm Trojan-Ransom.Win32.Losya.dd
GData Gen:Variant.Kazy.18491
Cynet Malicious (score: 100)
McAfee Artemis!A0E9B4F31779
VBA32 Trojan.Zeus.EA.0999
Malwarebytes Malware.Heuristic.1003
Panda Generic Malware
TrendMicro-HouseCall Ransom_LockScreen.R002C0DBR21
Tencent Win32.Trojan.Losya.Lmuj
Yandex Trojan.GenAsa!pJ5DRYBaO4w
Ikarus Trojan-Ransom.Gimemo
eGambit Generic.Malware
Fortinet W32/Krap.A!tr
Webroot W32.Malware.Gen
AVG Win32:Malware-gen
Cybereason malicious.317793
Qihoo-360 Win32/Ransom.Generic.HwsBqd0A

How to remove Ransom:Win32/LockScreen.BA virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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 Ransom:Win32/LockScreen.BA 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 Ransom:Win32/LockScreen.BA you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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