Win32/Injector.BYVA

Written by Robert Bailey

What is Win32/Injector.BYVA infection?

In this article you will certainly locate regarding the definition of Win32/Injector.BYVA as well as its unfavorable effect on your computer system. Such ransomware are a kind of malware that is elaborated by online frauds to demand paying the ransom money by a sufferer.

GridinSoft Anti-Malware Review

It is better to prevent, than repair and repent!

When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
GridinSoft Anti-Malware 6-day trial available.
EULA | Privacy Policy | GridinSoft

Most of the cases, Win32/Injector.BYVA virus will instruct its sufferers to launch funds move for the purpose of counteracting the changes that the Trojan infection has presented to the victim’s gadget.

Win32/Injector.BYVA Summary

These adjustments can be as follows:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • Possible date expiration check, exits too soon after checking local time;
  • 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.

  • A process created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Network activity contains more than one unique useragent.;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Creates a copy of itself;
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents found on the victim’s hard disk — so the target can no more make use of the data;
  • Preventing normal 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.

Win32/Injector.BYVA

The most regular channels through which Win32/Injector.BYVA Trojans are injected are:

  • By means of phishing emails;
  • As a consequence of user ending up on a resource that holds a harmful software application;

As soon as the Trojan is successfully injected, it will either cipher the data on the target’s computer or prevent the tool from operating in an appropriate way – while also positioning a ransom note that points out the demand for the sufferers to impact the repayment 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 show up when the client restarts the COMPUTER after the system has actually currently been harmed.

Win32/Injector.BYVA circulation channels.

In various edges of the globe, Win32/Injector.BYVA expands by leaps and bounds. Nonetheless, the ransom money notes as well as techniques of obtaining the ransom money amount may differ relying on particular regional (local) setups. The ransom money notes as well as tricks of extorting the ransom money quantity may vary depending on certain local (regional) settings.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software program.

    In specific locations, the Trojans often wrongfully report having identified some unlicensed applications allowed on the sufferer’s gadget. The sharp then requires the user to pay the ransom.

    Faulty statements concerning prohibited content.

    In nations where software piracy is much less preferred, this approach is not as efficient for the cyber scams. Additionally, the Win32/Injector.BYVA popup alert might incorrectly assert to be originating from a police organization as well as will certainly report having located youngster pornography or other unlawful information on the gadget.

    Win32/Injector.BYVA popup alert might falsely claim to be acquiring from a law enforcement organization as well as will report having situated youngster porn or other illegal data on the tool. The alert will in a similar way contain a need for the user to pay the ransom.

Technical details

File Info:

crc32: B23C44A6
md5: 198b5bfb79ffd4cc022a0d5832a5a72e
name: 198B5BFB79FFD4CC022A0D5832A5A72E.mlw
sha1: 9493b24ad8ab6e3e045566dc78a018ebd0f6ca39
sha256: adf782e86608c56d1305fe885a1dd7274e6fc99dd6b9587ac33b913916e254ad
sha512: de9a0647ee4b3785c303f5fbf031923fa5deb9e719e52e176644d88271a0b000f894136f6295d89ccf1d866c355a6c1de5aadd0713abb7dfa50d5b523010ac50
ssdeep: 12288:+i/o/BzPQ6JrpDkK3ABa1S1Y1zxmLA1KuxRf:9o/BFJpAKmLA/Rf
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Injector.BYVA also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 004be29a1 )
Elastic malicious (high confidence)
DrWeb Trojan.AVKill.36755
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Bitman.13865
ALYac Gen:Variant.Symmi.68808
Cylance Unsafe
Zillya Trojan.Bitman.Win32.179
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Tescrypt.954e3975
K7GW Trojan ( 004be29a1 )
Cybereason malicious.b79ffd
Cyren W32/Trojan.YCVQ-3233
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Injector.BYVA
Zoner Trojan.Win32.34403
APEX Malicious
Avast Win32:GenMalicious-JXB [Trj]
ClamAV Win.Trojan.TeslaCrypt-2
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Symmi.68808
NANO-Antivirus Trojan.Win32.Snocry.dqxfqo
ViRobot Trojan.Win32.Ransom.491520
SUPERAntiSpyware Trojan.Agent/Gen-Ransom
MicroWorld-eScan Gen:Variant.Symmi.68808
Tencent Malware.Win32.Gencirc.10c821c1
Ad-Aware Gen:Variant.Symmi.68808
Sophos Mal/Generic-R + Troj/Ransom-ATN
BitDefenderTheta Gen:NN.ZexaF.34628.EmW@auWCpVgi
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_CRYPTESLA.SM
McAfee-GW-Edition BehavesLike.Win32.Emotet.gh
FireEye Generic.mg.198b5bfb79ffd4cc
Emsisoft Gen:Variant.Symmi.68808 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan/Snocry.aa
Webroot Trojan.Dropper.Gen
Avira HEUR/AGEN.1116234
eGambit Unsafe.AI_Score_95%
Microsoft Ransom:Win32/Tescrypt.A
Arcabit Trojan.Symmi.D10CC8
GData Gen:Variant.Symmi.68808
TACHYON Trojan/W32.Ransom.491520
AhnLab-V3 Trojan/Win32.Snocry.R142966
Acronis suspicious
McAfee Ransom-Tescrypt!198B5BFB79FF
MAX malware (ai score=100)
VBA32 BScope.TrojanRansom.Tescrypt
Malwarebytes Malware.Heuristic.1004
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_CRYPTESLA.SM
Rising Ransom.Tescrypt!8.3AF (CLOUD)
Yandex Trojan.GenAsa!i88Sn/cJkvo
Ikarus Trojan.Win32.Filecoder
Fortinet W32/Injector.BZED!tr
AVG Win32:GenMalicious-JXB [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Tescrypt.HgAASRAA

How to remove Win32/Injector.BYVA 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 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 Win32/Injector.BYVA 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 Win32/Injector.BYVA you can always ask me in the comments for getting help.

Sending
User Review
0 (0 votes)
Comments Rating 0 (0 reviews)

References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. 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.

Leave a Reply

Sending

This site uses Akismet to reduce spam. Learn how your comment data is processed.