Win32:Small-KBA [Trj]
Ava White
Updated on March 20, 2026
What is Win32:Small-KBA [Trj] infection?
In this short article you will certainly discover regarding the meaning of Win32:Small-KBA [Trj] and its unfavorable impact on your computer. Such ransomware are a type of malware that is specified by on-line frauds to demand paying the ransom money by a target.
In the majority of the situations, Win32:Small-KBA [Trj] infection will certainly advise its victims to initiate funds move for the objective of reducing the effects of the changes that the Trojan infection has actually presented to the victim’s device.
Win32:Small-KBA [Trj] Summary
These modifications can be as complies with:
- The executable is compressed using UPX;
- 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.
- Ciphering the records situated on the target’s disk drive — so the target can no more utilize the data;
- Preventing routine accessibility 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.
Win32:Small-KBA [Trj]
The most common channels through which Win32:Small-KBA [Trj] Ransomware are injected are:
- By ways of phishing emails;
- As a consequence of individual winding up on a resource that holds a harmful software program;
As soon as the Trojan is efficiently injected, it will either cipher the data on the victim’s computer or protect against the device from working in a correct way – while also positioning a ransom note that mentions the demand for the sufferers to impact the repayment for the objective of decrypting the files or recovering the data system back to the first condition. In a lot of circumstances, the ransom money note will certainly show up when the customer restarts the PC after the system has actually already been harmed.
Win32:Small-KBA [Trj] circulation channels.
In various edges of the world, Win32:Small-KBA [Trj] expands by jumps and also bounds. However, the ransom money notes and methods of extorting the ransom quantity might differ relying on specific local (local) setups. The ransom money notes and tricks of obtaining the ransom money amount might differ depending on certain neighborhood (local) setups.
For example:
Faulty informs regarding unlicensed software program.
In particular locations, the Trojans commonly wrongfully report having actually spotted some unlicensed applications made it possible for on the sufferer’s gadget. The sharp then requires the customer to pay the ransom money.
Faulty declarations about unlawful material.
In countries where software piracy is much less preferred, this technique is not as effective for the cyber scams. Additionally, the Win32:Small-KBA [Trj] popup alert might wrongly assert to be stemming from a police institution and also will certainly report having situated child pornography or other illegal data on the gadget.
Win32:Small-KBA [Trj] popup alert might wrongly declare to be deriving from a regulation enforcement institution and also will report having located youngster porn or other unlawful data on the device. The alert will in a similar way include a requirement for the user to pay the ransom.
Technical details
File Info:
crc32: 9174AC3Amd5: a49654f259857606cd2e813ddf81bcc2name: A49654F259857606CD2E813DDF81BCC2.mlwsha1: b70decc7d5e526bc37c562957bb3bc44584f3fa8sha256: 0780d2638cf22d0ce9faacac23ff142bbfbe2a0cd5797d66d24c2a1b2da7dbb0sha512: e7ef7546b9403b5b4586b411bb4c0aac08cdfdfaaefa274b77b14a04f86baef431782c5ab2120f775c1505bcea4ca496b12f7dcded41226c42e8f878b5acd87essdeep: 3072:WG+jiOxO6DZvgN/ANRcbgbntW5n2ThWsNexPnCrnfbgbntW5n2ThWsNexPnCrnd:6jiuDZv4/yibSankP+6bfbSankP+6bdtype: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressedVersion Info:
0: [No Data]
Win32:Small-KBA [Trj] also known as:
| GridinSoft | Trojan.Ransom.Gen |
| Bkav | W32.AIDetect.malware1 |
| K7AntiVirus | Trojan ( 0003ef7e1 ) |
| Elastic | malicious (high confidence) |
| DrWeb | BackDoor.FireOn.origin |
| ClamAV | Win.Worm.Socks-7102088-0 |
| McAfee | BackDoor-DOQ |
| Cylance | Unsafe |
| Zillya | Trojan.Blocker.Win32.47216 |
| Sangfor | Trojan.Win32.Save.a |
| CrowdStrike | win/malicious_confidence_100% (D) |
| Alibaba | Ransom:Win32/Blocker.5279d6e6 |
| K7GW | Trojan ( 0003ef7e1 ) |
| Cybereason | malicious.259857 |
| Baidu | Win32.Trojan-PSW.Agent.e |
| Cyren | W32/Socks.A.gen!Eldorado |
| Symantec | Infostealer |
| ESET-NOD32 | a variant of Win32/Socks.NAJ |
| APEX | Malicious |
| Avast | Win32:Small-KBA [Trj] |
| Cynet | Malicious (score: 100) |
| Kaspersky | Trojan-Ransom.Win32.Blocker.iwia |
| BitDefender | Trojan.Crypt.AS |
| NANO-Antivirus | Trojan.Win32.Agent.cvpeyq |
| MicroWorld-eScan | Trojan.Crypt.AS |
| Tencent | Win32.Trojan.Blocker.Lmkk |
| Ad-Aware | Trojan.Crypt.AS |
| Sophos | Mal/Generic-S |
| Comodo | Backdoor.Win32.Agent.DOQ9@17bcpt |
| BitDefenderTheta | AI:Packer.D6DD2DE91E |
| VIPRE | Backdoor.Win32.Agent.gph (fs) |
| TrendMicro | WORM_SOCKS.EJ |
| McAfee-GW-Edition | BehavesLike.Win32.Backdoor.dt |
| FireEye | Generic.mg.a49654f259857606 |
| Emsisoft | Trojan.Crypt.AS (B) |
| SentinelOne | Static AI – Malicious PE |
| Jiangmin | Worm/AutoRun.gxl |
| Avira | TR/Spy.Gen |
| eGambit | Unsafe.AI_Score_99% |
| Microsoft | Trojan:Win32/Malex.gen!J |
| ZoneAlarm | Trojan-Ransom.Win32.Blocker.iwia |
| GData | Trojan.Crypt.AS |
| TACHYON | Ransom/W32.Blocker.272970 |
| Acronis | suspicious |
| VBA32 | BScope.Worm.Socks |
| MAX | malware (ai score=85) |
| Malwarebytes | Generic.Worm.Autorun.DDS |
| Panda | Bck/Agent.IRY |
| TrendMicro-HouseCall | WORM_SOCKS.EJ |
| Rising | Ransom.Blocker!8.12A (TFE:dGZlOgVm25iVAGM3sw) |
| Yandex | Trojan.GenAsa!BVhLnQbYp+c |
| Ikarus | Worm.Win32.Socks |
| MaxSecure | Trojan.Malware.300983.susgen |
| Fortinet | W32/Socks.HF!worm |
| AVG | Win32:Small-KBA [Trj] |
| Paloalto | generic.ml |
How to remove Win32:Small-KBA [Trj] 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:Small-KBA [Trj] 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:Small-KBA [Trj] you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
