Win32/Injector.YSC
Andrew Patterson
Updated on February 21, 2026
What is Win32/Injector.YSC infection?
In this article you will locate concerning the definition of Win32/Injector.YSC and also its adverse influence on your computer system. Such ransomware are a form of malware that is elaborated by on-line frauds to require paying the ransom by a target.
In the majority of the cases, Win32/Injector.YSC ransomware will 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 target’s gadget.
Win32/Injector.YSC 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.
- Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
- Executed a process and injected code into it, probably while unpacking;
- 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!
- 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
- Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
- Ciphering the documents found on the sufferer’s hard disk — so the target can no longer make use of the data;
- Preventing routine access to the sufferer’s workstation;
Win32/Injector.YSC
One of the most common networks through which Win32/Injector.YSC Ransomware Trojans are infused are:
- By ways of phishing e-mails;
- As an effect of individual ending up on a source that holds a malicious software program;
As soon as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s PC or protect against the gadget from functioning in an appropriate fashion – while additionally putting a ransom note that points out the demand for the sufferers to effect the payment for the function of decrypting the files or bring back the documents system back to the preliminary problem. In most instances, the ransom note will certainly turn up when the client restarts the PC after the system has already been damaged.
Win32/Injector.YSC distribution channels.
In various corners of the world, Win32/Injector.YSC grows by leaps and bounds. Nonetheless, the ransom notes as well as methods of obtaining the ransom money amount might differ depending upon particular local (local) setups. The ransom money notes and techniques of extorting the ransom quantity might differ depending on particular local (regional) settings.
As an example:
Faulty informs concerning unlicensed software program.
In particular areas, the Trojans commonly wrongfully report having spotted some unlicensed applications allowed on the target’s tool. The alert then requires the customer to pay the ransom.
Faulty statements regarding illegal content.
In countries where software piracy is less prominent, this approach is not as efficient for the cyber frauds. Additionally, the Win32/Injector.YSC popup alert may falsely claim to be originating from a law enforcement institution as well as will certainly report having situated youngster pornography or other unlawful data on the gadget.
Win32/Injector.YSC popup alert may falsely declare to be deriving from a law enforcement organization and will certainly report having situated youngster pornography or various other prohibited data on the device. The alert will in a similar way consist of a need for the individual to pay the ransom.
Technical details
File Info:
crc32: A1BEC6E6md5: 3408cf9e0307075c73ffbe5ac7dbd884name: 3408CF9E0307075C73FFBE5AC7DBD884.mlwsha1: 689101121c6fce3818f7a2e630ab842c5b3e34c0sha256: 4b83c38430785ecfb289636f63ae3347e6613c8acf8f4920a42e875a49fb79ebsha512: 40eb747cd070b1be55e5c603e39b7a327375a5b61aaae61d9c385a2fc2c960d6fb2a874fad338e8c95f63a293b757bcc9c38ddad14f04343346a5651c6d8539fssdeep: 3072:ChKoGixHh1nSfVo2j4Br2tXWjwXzTibqu:aKo51SSz4WjwjTlutype: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS WindowsVersion Info:
0: [No Data]
Win32/Injector.YSC also known as:
| GridinSoft | Trojan.Ransom.Gen |
| Bkav | W32.AIDetect.malware1 |
| Elastic | malicious (high confidence) |
| DrWeb | Trojan.Siggen4.36450 |
| Cynet | Malicious (score: 99) |
| ALYac | Gen:Heur.Zygug.6 |
| Cylance | Unsafe |
| Sangfor | Trojan.Win32.Zygug.6 |
| CrowdStrike | win/malicious_confidence_70% (D) |
| Cybereason | malicious.e03070 |
| Cyren | W32/Hamweq.D.gen!Eldorado |
| ESET-NOD32 | a variant of Win32/Injector.YSC |
| APEX | Malicious |
| Avast | Win32:Cryptor |
| Kaspersky | Trojan-Ransom.Win32.Foreign.nwos |
| BitDefender | Gen:Heur.Zygug.6 |
| NANO-Antivirus | Trojan.Win32.Symmi.entshu |
| ViRobot | Trojan.Win32.A.Foreign.121344.D |
| MicroWorld-eScan | Gen:Heur.Zygug.6 |
| Tencent | Win32.Trojan.Foreign.tsi |
| Ad-Aware | Gen:Heur.Zygug.6 |
| Sophos | ML/PE-A + Mal/EncPk-AHQ |
| Comodo | TrojWare.Win32.PWS.ZBot.AAA@4sq88d |
| BitDefenderTheta | Gen:NN.ZexaF.34690.hGW@aK1!L0ki |
| VIPRE | Trojan.Win32.Encpk.ahq (v) |
| TrendMicro | TROJ_RANSOM.SMWX |
| McAfee-GW-Edition | PWS-Zbot.gen.apx |
| FireEye | Generic.mg.3408cf9e0307075c |
| Emsisoft | Gen:Heur.Zygug.6 (B) |
| Jiangmin | Trojan/Foreign.bdz |
| Webroot | W32.Rogue.Gen |
| Avira | TR/Dropper.Gen7 |
| Antiy-AVL | Trojan/Generic.ASMalwS.34D739 |
| Kingsoft | Win32.Troj.Undef.(kcloud) |
| Microsoft | Ransom:Win32/Tobfy.A |
| AegisLab | Trojan.Win32.Foreign.j!c |
| ZoneAlarm | Trojan-Ransom.Win32.Foreign.nwos |
| GData | Gen:Heur.Zygug.6 |
| AhnLab-V3 | Spyware/Win32.Zbot.R43185 |
| McAfee | PWS-Zbot.gen.apx |
| MAX | malware (ai score=87) |
| VBA32 | Worm.Dorkbot.1312 |
| Panda | Generic Malware |
| TrendMicro-HouseCall | TROJ_RANSOM.SMWX |
| Rising | Ransom.Tobfy!8.339 (CLOUD) |
| Yandex | Trojan.Injector!O/X9JvUHMzU |
| Ikarus | Trojan.Win32.Buzus |
| Fortinet | W32/Ransom.AAX!tr |
| AVG | Win32:Cryptor |
How to remove Win32/Injector.YSC ransomware?
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-MalwareRun 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 Win32/Injector.YSC 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 Win32/Injector.YSC you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
