What is tkcrypt.exe?

tkcrypt.exe is part of Maintenance Service Installer and developed by METROCERT UMITEMP SRL according to the tkcrypt.exe version information.

tkcrypt.exe's description is "Maintenance Service Installer"

tkcrypt.exe is usually located in the 'c:\downloads\' folder.

Some of the anti-virus scanners at VirusTotal detected tkcrypt.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 tkcrypt.exe:

Property	Value
Product name	Maintenance Service Installer
Company name	METROCERT UMITEMP SRL
File description	Maintenance Service Installer
Internal name	tkcrypt.exe
Original filename	tkcrypt.exe
Comments	ileratikasejufuham
Legal copyright	Copyright © 2018 METROCERT UMITEMP SRL
Product version	6.4.18.1
File version	6.4.18.1

Here's a screenshot of the file properties when displayed by Windows Explorer:

Product name	Maintenance Service Installer
Company name	METROCERT UMITEMP SRL
File description	Maintenance Service Installer
Internal name	tkcrypt.exe
Original filename	tkcrypt.exe
Comments	ileratikasejufuham
Legal copyright	Copyright © 2018 METROCERT UMITEMP ..
Product version	6.4.18.1
File version	6.4.18.1

Digital signatures [?]

tkcrypt.exe is not signed.

VirusTotal report

43 of the 65 anti-virus programs at VirusTotal detected the tkcrypt.exe file. That's a 66% detection rate.

Scanner	Detection Name
Acronis	suspicious
Ad-Aware	Gen:Trojan.Heur.DNP.1m0@a8NO@yi
AegisLab	Trojan.Win32.Generic.4!c
AhnLab-V3	Trojan/Win32.Generic.C3073564
Arcabit	Trojan.Heur.DNP.E326F3
Avast	Win32:Trojan-gen
AVG	Win32:Trojan-gen
Avira	TR/Kryptik.akylw
BitDefender	Gen:Trojan.Heur.DNP.1m0@a8NO@yi
CrowdStrike	win/malicious_confidence_100% (W)
Cybereason	malicious.45e3fd
Cyren	W32/MSIL_Kryptik.FQ.gen!Eldorado
DrWeb	Trojan.Packed2.41525
Emsisoft	Gen:Trojan.Heur.DNP.1m0@a8NO@yi (B)
Endgame	malicious (high confidence)
ESET-NOD32	a variant of MSIL/Kryptik.QZA
F-Secure	Trojan.TR/Kryptik.akylw
Fortinet	MSIL/Kryptik.QZA!tr
GData	Win32.Trojan-Spy.Heye.VU6YY7
Ikarus	Trojan.MSIL.Crypt
Invincea	heuristic
Jiangmin	Trojan.Generic.dbiht
K7AntiVirus	Trojan ( 0054943b1 )
K7GW	Trojan ( 0054943b1 )
Kaspersky	HEUR:Trojan.Win32.Generic
Malwarebytes	Spyware.PasswordStealer.MSIL.Generic
MAX	malware (ai score=100)
McAfee	Packed-FRP!258742C45E3F
McAfee-GW-Edition	BehavesLike.Win32.Generic.cc
Microsoft	Trojan:Win32/Tiggre!plock
MicroWorld-eScan	Gen:Trojan.Heur.DNP.1m0@a8NO@yi
NANO-Antivirus	Trojan.Win32.Packed2.fnuiuq
Paloalto	generic.ml
Panda	Trj/GdSda.A
Qihoo-360	HEUR/QVM03.0.AD71.Malware.Gen
Rising	Trojan.Kryptik!8.8 (CLOUD)
SentinelOne	static engine - malicious
Sophos	Mal/Generic-S
Tencent	Win32.Trojan.Inject.Auto
Trapmine	malicious.high.ml.score
TrendMicro-HouseCall	Backdoor.Win32.NANOCORE.THCOHAI
ViRobot	Trojan.Win32.S.Infostealer.881152.A
ZoneAlarm	HEUR:Trojan.Win32.Generic

43 of the 65 anti-virus programs detected the tkcrypt.exe file.

Sandbox Report

The following information was gathered by executing the file inside Cuckoo Sandbox.

Summary

Successfully executed process in sandbox.

Summary

{
    "dll_loaded": [
        "ADVAPI32.dll",
        "SHLWAPI.dll",
        "C:\\Windows\\system32\\IMM32.DLL",
        "gdi32.dll"
    ],
    "file_failed": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\447f6d1dc4404e993f92d1abd074be35933bf2fdafce8c13d3c75183fe82d609.bin.config"
    ],
    "regkey_opened": [
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\.NETFramework\\Policy\\Upgrades",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\Policy\\Upgrades",
        "HKEY_CURRENT_USER\\Software\\Microsoft\\.NETFramework\\Policy\\Standards",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\Policy\\Standards\\v4.0.30319",
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\.NETFramework",
        "HKEY_CURRENT_USER\\Software\\Microsoft\\.NETFramework",
        "HKEY_CURRENT_USER\\Software\\Microsoft\\.NETFramework\\Policy\\Upgrades",
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\.NETFramework\\Policy\\",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\Policy\\Standards",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\Policy\\AppPatch",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\Policy\\v2.0",
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\.NETFramework\\Policy\\Standards"
    ],
    "file_exists": [
        "C:\\Windows\\System32\\MSCOREE.DLL.local"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\447f6d1dc4404e993f92d1abd074be35933bf2fdafce8c13d3c75183fe82d609.bin"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\NoGuiFromShim",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\InstallRoot",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows NT\\CurrentVersion\\Windows\\LoadAppInit_DLLs",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\CLRLoadLogDir",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\OnlyUseLatestCLR"
    ],
    "directory_enumerated": [
        "C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\mscoreei.dll",
        "C:\\Windows\\Microsoft.NET\\Framework\\Upgrades.2.0.50727\\mscoreei.dll",
        "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\mscorwks.dll"
    ]
}

Generic

[
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\447f6d1dc4404e993f92d1abd074be35933bf2fdafce8c13d3c75183fe82d609.bin",
        "process_name": "447f6d1dc4404e993f92d1abd074be35933bf2fdafce8c13d3c75183fe82d609.bin",
        "pid": 2420,
        "summary": {
            "dll_loaded": [
                "ADVAPI32.dll",
                "SHLWAPI.dll",
                "C:\\Windows\\system32\\IMM32.DLL",
                "gdi32.dll"
            ],
            "file_failed": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\447f6d1dc4404e993f92d1abd074be35933bf2fdafce8c13d3c75183fe82d609.bin.config"
            ],
            "regkey_opened": [
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\.NETFramework\\Policy\\Upgrades",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\Policy\\Upgrades",
                "HKEY_CURRENT_USER\\Software\\Microsoft\\.NETFramework\\Policy\\Standards",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\Policy\\Standards\\v4.0.30319",
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\.NETFramework",
                "HKEY_CURRENT_USER\\Software\\Microsoft\\.NETFramework",
                "HKEY_CURRENT_USER\\Software\\Microsoft\\.NETFramework\\Policy\\Upgrades",
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\.NETFramework\\Policy\\",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\Policy\\Standards",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\Policy\\AppPatch",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\Policy\\v2.0",
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\.NETFramework\\Policy\\Standards"
            ],
            "file_exists": [
                "C:\\Windows\\System32\\MSCOREE.DLL.local"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\447f6d1dc4404e993f92d1abd074be35933bf2fdafce8c13d3c75183fe82d609.bin"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\NoGuiFromShim",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\InstallRoot",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows NT\\CurrentVersion\\Windows\\LoadAppInit_DLLs",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\CLRLoadLogDir",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\.NETFramework\\OnlyUseLatestCLR"
            ],
            "directory_enumerated": [
                "C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\mscoreei.dll",
                "C:\\Windows\\Microsoft.NET\\Framework\\Upgrades.2.0.50727\\mscoreei.dll",
                "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\mscorwks.dll"
            ]
        },
        "first_seen": 1599184386.609375,
        "ppid": 1268
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1599184386.328125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 2,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 7.916442833864065,
                "section": {
                    "size_of_data": "0x000d6600",
                    "virtual_address": "0x00002000",
                    "entropy": 7.916442833864065,
                    "name": ".text",
                    "virtual_size": "0x000d65a4"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            },
            {
                "entropy": 0.997093023255814,
                "type": "generic",
                "description": "Overall entropy of this PE file is high"
            }
        ],
        "references": [
            "http:\/\/www.forensickb.com\/2013\/03\/file-entropy-explained.html",
            "http:\/\/virii.es\/U\/Using%20Entropy%20Analysis%20to%20Find%20Encrypted%20and%20Packed%20Malware.pdf"
        ],
        "name": "packer_entropy"
    }
]

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": 546,
            "time": 3.078651189804077,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2018,
            "time": 3.037976026535034,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2346,
            "time": 1.0258750915527344,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2674,
            "time": 3.0500590801239014,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3002,
            "time": 1.5344641208648682,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3330,
            "time": -0.09859299659729004,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 3658,
            "time": 1.5474090576171875,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6986,
            "time": 1.0482151508331299,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 11178,
            "time": 3.1253249645233154,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "4d5b9942b8705653c7cf6ce736e8a23c1bdef03d4804ce93fd57b6f6a24ca1b6",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "c369164642f8e20677ade014cccdb0e9b77daf3a5f9c1e5b8d575b3580ff80bf",
    "irc": [],
    "https_ex": []
}

Screenshots

tkcrypt.exe removal instructions

The instructions below shows how to remove tkcrypt.exe with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the tkcrypt.exe file for removal, restart your computer and scan it again to verify that tkcrypt.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 tkcrypt.exe in the scan result and tick the checkbox next to the tkcrypt.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 tkcrypt.exe in the scan result.

c:\downloads\tkcrypt.exe
Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the tkcrypt.exe file.
Restart your computer.
Start FreeFixer and scan your computer again. If tkcrypt.exe still remains in the scan result, proceed with the next step. If tkcrypt.exe is gone from the scan result you're done.
If tkcrypt.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 tkcrypt.exe no longer appear in the scan result.

Free Questionnaires

Hashes [?]

Property	Value
MD5	258742c45e3fdebc3662b3a74b9fcca3
SHA256	447f6d1dc4404e993f92d1abd074be35933bf2fdafce8c13d3c75183fe82d609

Error Messages

These are some of the error messages that can appear related to tkcrypt.exe:

tkcrypt.exe has encountered a problem and needs to close. We are sorry for the inconvenience.

tkcrypt.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.

Maintenance Service Installer has stopped working.

End Program - tkcrypt.exe. This program is not responding.

tkcrypt.exe is not a valid Win32 application.

tkcrypt.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.

What will you do with tkcrypt.exe?

To help other users, please let us know what you will do with tkcrypt.exe:

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.

No comments posted yet.

What is tkcrypt.exe?

Vendor and version information [?]

Digital signatures [?]

VirusTotal report

Sandbox Report

Summary

Summary

Generic

Signatures

Yara

Network

Screenshots

tkcrypt.exe removal instructions

Hashes [?]

Error Messages

What will you do with tkcrypt.exe?

Comments

Leave a reply