What is KMSSS.exe?
KMSSS.exe is part of KMS emulator by Ratiborus and developed by MSFree Inc. according to the KMSSS.exe version information.
KMSSS.exe's description is "KMS emulator by Ratiborus."
KMSSS.exe is usually located in the 'C:\ProgramData\KMSAuto\bin\' folder.
Some of the anti-virus scanners at VirusTotal detected KMSSS.exe.
If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.
Vendor and version information [?]
The following is the available information on KMSSS.exe:
| Property | Value |
|---|---|
| Product name | KMS emulator by Ratiborus |
| Company name | MSFree Inc. |
| File description | KMS emulator by Ratiborus. |
| Internal name | KMSSS.exe |
| Original filename | KMSSS.exe |
| Legal copyright | Copyright (c) 2014 |
| Product version | 2.0.7.0 |
| File version | 2.0.7.0 |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | KMS emulator by Ratiborus |
| Company name | MSFree Inc. |
| File description | KMS emulator by Ratiborus. |
| Internal name | KMSSS.exe |
| Original filename | KMSSS.exe |
| Legal copyright | Copyright (c) 2014 |
| Product version | 2.0.7.0 |
| File version | 2.0.7.0 |
Digital signatures [?]
KMSSS.exe is not signed.
VirusTotal report
40 of the 72 anti-virus programs at VirusTotal detected the KMSSS.exe file. That's a 56% detection rate.
| Scanner | Detection Name |
|---|---|
| Acronis | suspicious |
| Ad-Aware | Gen:Variant.Application.KMSActivator.5 |
| AegisLab | Hacktool.Win32.KMSAuto.3!c |
| Alibaba | HackTool:Win32/KMSAuto.02333d97 |
| Antiy-AVL | Trojan/Win32.Azden |
| Arcabit | Trojan.Application.KMSActivator.5 |
| BitDefender | Gen:Variant.Application.KMSActivator.5 |
| CAT-QuickHeal | Trojan.IGENERIC |
| Comodo | Malware@#2kj9sbhmec0is |
| Cybereason | malicious.d5dabe |
| Cylance | Unsafe |
| Cyren | W32/Trojan.NVWL-7899 |
| Emsisoft | Gen:Variant.Application.KMSActivator.5 (B) |
| Endgame | malicious (high confidence) |
| ESET-NOD32 | a variant of Win32/HackKMS.AL potentially unsafe |
| FireEye | Generic.mg.01a80aad5dabed1c |
| Fortinet | Riskware/HackKMS |
| GData | Gen:Variant.Application.KMSActivator.5 |
| Ikarus | PUA.HackKMS |
| Jiangmin | HackTool.KMSAuto.dk |
| K7AntiVirus | Unwanted-Program ( 005194ac1 ) |
| K7GW | Unwanted-Program ( 005194ac1 ) |
| Kaspersky | HackTool.Win32.KMSAuto.ew |
| MAX | malware (ai score=100) |
| MaxSecure | Trojan.Malware.73812776.susgen |
| McAfee | GenericRXGK-GL!01A80AAD5DAB |
| McAfee-GW-Edition | GenericRXGK-GL!01A80AAD5DAB |
| Microsoft | HackTool:Win32/AutoKMS |
| MicroWorld-eScan | Gen:Variant.Application.KMSActivator.5 |
| Rising | Trojan.Tiggre!8.ED98 (CLOUD) |
| SentinelOne | DFI - Suspicious PE |
| Sophos | Mal/Generic-S |
| Symantec | Hacktool.Kms |
| Tencent | Win32.Hacktool.Kmsauto.Eeq |
| TrendMicro | TROJ_GEN.R002C0OJ918 |
| TrendMicro-HouseCall | TROJ_GEN.R002C0OJ918 |
| VIPRE | Trojan.Win32.Generic!BT |
| Yandex | PUP.Agent! |
| Zillya | Tool.KMSAuto.Win32.379 |
| ZoneAlarm | HackTool.Win32.KMSAuto.ew |
Sandbox Report
The following information was gathered by executing the file inside Cuckoo Sandbox.
Summary
Successfully executed process in sandbox.
Summary
{
"regkey_opened": [
"HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Services\\Rpc\\Linkage",
"HKEY_LOCAL_MACHINE\\Software\\Policies\\Microsoft\\Windows NT\\Rpc",
"HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Services\\WinSock2\\Parameters",
"HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Rpc\\Extensions",
"HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Rpc",
"HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\BFE"
],
"regkey_read": [
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Rpc\\Extensions\\RemoteRpcDll",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Rpc\\MaxRpcSize",
"HKEY_LOCAL_MACHINE\\SYSTEM\\Setup\\SystemSetupInProgress",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\SQMClient\\Windows\\CEIPEnable",
"HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\services\\Tcpip\\Parameters\\Hostname",
"HKEY_LOCAL_MACHINE\\SYSTEM\\Setup\\OOBEInProgress",
"HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\ComputerName\\ActiveComputerName\\ComputerName"
],
"dll_loaded": [
"rpcrt4.dll",
"CRYPTSP.dll",
"RpcRtRemote.dll",
"WS2_32.dll"
]
}Generic
[
{
"process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\fd7499214abaa13bf56d006ab7de78eb8d6adf17926c24ace024d067049bc81d.bin",
"process_name": "fd7499214abaa13bf56d006ab7de78eb8d6adf17926c24ace024d067049bc81d.bin",
"pid": 2816,
"summary": {
"regkey_opened": [
"HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Services\\Rpc\\Linkage",
"HKEY_LOCAL_MACHINE\\Software\\Policies\\Microsoft\\Windows NT\\Rpc",
"HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Services\\WinSock2\\Parameters",
"HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Rpc\\Extensions",
"HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Rpc",
"HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\BFE"
],
"regkey_read": [
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Rpc\\Extensions\\RemoteRpcDll",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Rpc\\MaxRpcSize",
"HKEY_LOCAL_MACHINE\\SYSTEM\\Setup\\SystemSetupInProgress",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\SQMClient\\Windows\\CEIPEnable",
"HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\services\\Tcpip\\Parameters\\Hostname",
"HKEY_LOCAL_MACHINE\\SYSTEM\\Setup\\OOBEInProgress",
"HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\ComputerName\\ActiveComputerName\\ComputerName"
],
"dll_loaded": [
"rpcrt4.dll",
"CRYPTSP.dll",
"RpcRtRemote.dll",
"WS2_32.dll"
]
},
"first_seen": 1573379585.625,
"ppid": 2016
},
{
"process_path": "C:\\Windows\\System32\\lsass.exe",
"process_name": "lsass.exe",
"pid": 476,
"summary": {},
"first_seen": 1573379585.3438,
"ppid": 376
}
]Signatures
[
{
"markcount": 13,
"families": [],
"description": "Command line console output was observed",
"severity": 1,
"marks": [
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": "UTC|KMS: ",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 85
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": "KMS Server Service Emulator v2.0.7 (04\/10\/2018) Starting ...\r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 100
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": "KMS Server Service Emulator Parameters:\r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 102
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": " Windows PID: 05426-00206-471-234034-03-1031-9200.0000-2222016 \r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 104
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": " Office 2010 PID: 03612-00096-199-655428-03-1042-9200.0000-2212016 \r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 105
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": " Office 2013 PID: 03612-00206-234-449523-03-1042-9200.0000-2322016 \r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 106
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": " Office 2016 PID: 03612-00206-680-567890-03-1042-17134.0000-2772018 \r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 107
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": " Port: 1688 \r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 108
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": " Activation Interval: 43200 minutes\r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 109
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": " Renewal Interval: 43200 minutes\r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 110
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": " Debug: Disabled\r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 111
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": " Hwid: DF279A0090B8D83E \r\n\r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 112
},
{
"call": {
"category": "misc",
"status": 1,
"stacktrace": [],
"api": "WriteConsoleA",
"return_value": 1,
"arguments": {
"buffer": "KMS Server Service Emulator v2.0.7 (04\/10\/2018) running ...\r\n",
"console_handle": "0x00000007"
},
"time": 1573379585.703,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 113
}
],
"references": [],
"name": "console_output"
},
{
"markcount": 1,
"families": [],
"description": "Checks amount of memory in system, this can be used to detect virtual machines that have a low amount of memory available",
"severity": 1,
"marks": [
{
"call": {
"category": "system",
"status": 1,
"stacktrace": [],
"api": "GlobalMemoryStatusEx",
"return_value": 1,
"arguments": {},
"time": 1573379585.687,
"tid": 2420,
"flags": {}
},
"pid": 2816,
"type": "call",
"cid": 16
}
],
"references": [],
"name": "antivm_memory_available"
}
]Yara
The Yara rules did not detect anything in the file.
Network
{
"tls": [],
"udp": [
{
"src": "192.168.56.101",
"dst": "192.168.56.255",
"offset": 662,
"time": 6.2151939868927,
"dport": 137,
"sport": 137
},
{
"src": "192.168.56.101",
"dst": "192.168.56.255",
"offset": 5342,
"time": 12.215729951859,
"dport": 138,
"sport": 138
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 7186,
"time": 6.1736829280853,
"dport": 5355,
"sport": 51001
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 7514,
"time": 4.1497130393982,
"dport": 5355,
"sport": 53595
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 7842,
"time": 6.1840269565582,
"dport": 5355,
"sport": 53848
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 8170,
"time": 4.6545391082764,
"dport": 5355,
"sport": 54255
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 8498,
"time": 3.0381901264191,
"dport": 5355,
"sport": 55314
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 8826,
"time": 4.6681101322174,
"dport": 1900,
"sport": 1900
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 28236,
"time": 4.1807589530945,
"dport": 3702,
"sport": 49152
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 36620,
"time": 6.2783250808716,
"dport": 1900,
"sport": 53598
}
],
"dns_servers": [],
"http": [],
"icmp": [],
"smtp": [],
"tcp": [],
"smtp_ex": [],
"mitm": [],
"hosts": [],
"pcap_sha256": "b0c3d574c477f68d6098ba4335e4b8643654b58b6ba9c8c53be374363a1691b8",
"dns": [],
"http_ex": [],
"domains": [],
"dead_hosts": [],
"sorted_pcap_sha256": "101d7a4d354bdce6f222dc3dcbedbcfb71cfca9263914dc106400eec66a5e1d1",
"irc": [],
"https_ex": []
}Screenshots
KMSSS.exe removal instructions
The instructions below shows how to remove KMSSS.exe with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the KMSSS.exe file for removal, restart your computer and scan it again to verify that KMSSS.exe has been successfully removed. Here are the removal instructions in more detail:
- Download and install FreeFixer: http://www.freefixer.com/download.html
- Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.
- When the scan is finished, locate KMSSS.exe in the scan result and tick the checkbox next to the KMSSS.exe file. Do not check any other file for removal unless you are 100% sure you want to delete it. Tip: Press CTRL-F to open up FreeFixer's search dialog to quickly locate KMSSS.exe in the scan result.
C:\ProgramData\KMSAuto\bin\KMSSS.exe 
- Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the KMSSS.exe file.
- Restart your computer.
- Start FreeFixer and scan your computer again. If KMSSS.exe still remains in the scan result, proceed with the next step. If KMSSS.exe is gone from the scan result you're done.
- If KMSSS.exe still remains in the scan result, check its checkbox again in the scan result and click Fix.
- Restart your computer.
- Start FreeFixer and scan your computer again. Verify that KMSSS.exe no longer appear in the scan result.
Folder name variants
KMSSS.exe may also be located in other folders than C:\ProgramData\KMSAuto\bin\. The most common variants are listed below:
- C:\Windows\KMS\bin\
Other files also named KMSSS.exe
KMSSS.exe (143 votes)
TCP/UDP Listening Ports [?]
KMSSS.exe has been reported to listen on the following TCP/UDP ports.
| Port | Protocol | # Occurrences |
|---|---|---|
| 1688 | TCP v4 | 1 |
Hashes [?]
| Property | Value |
|---|---|
| MD5 | 01a80aad5dabed1c1580f7e00213cf9d |
| SHA256 | fd7499214abaa13bf56d006ab7de78eb8d6adf17926c24ace024d067049bc81d |
Error Messages
These are some of the error messages that can appear related to kmsss.exe:
kmsss.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
kmsss.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.
KMS emulator by Ratiborus. has stopped working.
End Program - kmsss.exe. This program is not responding.
kmsss.exe is not a valid Win32 application.
kmsss.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.
What will you do with KMSSS.exe?
To help other users, please let us know what you will do with KMSSS.exe:
What did other users do?
The poll result listed below shows what users chose to do with KMSSS.exe. 33% have voted for removal. Based on votes from 3 users.
NOTE: Please do not use this poll as the only source of input to determine what you will do with KMSSS.exe. Only 3 users has voted so far so it does not offer a high degree of confidence.
Comments
Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.
I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.
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