What is prepreinstaller_win2.exe?

prepreinstaller_win2.exe is usually located in the 'c:\downloads\' folder.

Some of the anti-virus scanners at VirusTotal detected prepreinstaller_win2.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 [?]

prepreinstaller_win2.exe does not have any version or vendor information.

Digital signatures [?]

prepreinstaller_win2.exe is not signed.

VirusTotal report

48 of the 68 anti-virus programs at VirusTotal detected the prepreinstaller_win2.exe file. That's a 71% detection rate.

ScannerDetection Name
Ad-Aware Gen:Variant.Mikey.32512
AegisLab Adware.Win32.Fiseria.m28r
AhnLab-V3 PUP/Win32.ConvertAd.C1369802
ALYac Gen:Variant.Mikey.32512
Antiy-AVL Trojan[Downloader]/Win32.AGeneric
Arcabit Trojan.Mikey.D7F00
Avast Win32:Evo-gen [Susp]
AVG FileRepMalware
Avira ADWARE/Adware.Gen7
Baidu Win32.Adware.Imali.a
BitDefender Gen:Variant.Mikey.32512
CAT-QuickHeal Downloader.Adload.18055
Comodo Application.Win32.Imali.F@655zc4
CrowdStrike win/malicious_confidence_60% (D)
Cybereason malicious.d65250
Cylance Unsafe
DrWeb Trojan.DownLoader19.37701
eGambit Generic.Malware
Emsisoft Gen:Variant.Mikey.32512 (B)
Endgame malicious (high confidence)
ESET-NOD32 a variant of Win32/Adware.Imali.K
Fortinet W32/Generic!tr.dldr
GData Gen:Variant.Mikey.32512
Ikarus PUA.Imali
Invincea heuristic
Jiangmin TrojanDownloader.Generic.aqxs
K7AntiVirus Adware ( 004dda921 )
K7GW Adware ( 004dda921 )
Kaspersky HEUR:Trojan-Downloader.Win32.Generic
Malwarebytes PUP.Optional.ConvertAd
McAfee RDN/Generic Downloader.x
McAfee-GW-Edition BehavesLike.Win32.MultiPlug.dh
Microsoft PUA:Win32/Bitrepeyp.A
MicroWorld-eScan Gen:Variant.Mikey.32512
NANO-Antivirus Trojan.Win32.Imali.eancur
Panda Trj/GdSda.A
Qihoo-360 Win32/Trojan.ad6
Rising Trojan.Win32.Generic.19B654F9 (C64:YzY0OqKrqF+Qnuy9)
SentinelOne DFI - Suspicious PE
Sophos Generic PUA IH (PUA)
Tencent Win32.Trojan-downloader.Generic.Lmlg
Trapmine malicious.high.ml.score
TrendMicro TROJ_GEN.R062C0PJ118
TrendMicro-HouseCall TROJ_GEN.R062C0PJ118
VBA32 BScope.Trojan.Downloader
Yandex PUA.Imali!
Zillya Adware.Imali.Win32.969
ZoneAlarm UDS:DangerousObject.Multi.Generic
48 of the 68 anti-virus programs detected the prepreinstaller_win2.exe file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "file_created": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib574C.tmp",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib574F.tmp",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib571C.tmp",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib5750.tmp",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib574E.tmp",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib574D.tmp"
    ],
    "regkey_written": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\EnableConsoleTracing",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\EnableFileTracing",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\MaxFileSize",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\FileTracingMask",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\ConsoleTracingMask",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\FileDirectory"
    ],
    "dll_loaded": [
        "CZlcZyl0.dll",
        "API-MS-WIN-Service-winsvc-L1-1-0.dll",
        "rtutils.dll",
        "API-MS-WIN-Service-Management-L1-1-0.dll",
        "WININET.dll",
        "kernel32.dll",
        "RASMAN.DLL",
        "Advapi32.dll",
        "CZlcZyl1.dll"
    ],
    "regkey_opened": [
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\crypt32",
        "HKEY_LOCAL_MACHINE\\Software\\Policies\\Microsoft\\Windows\\CurrentVersion\\Internet Settings",
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Tracing",
        "HKEY_LOCAL_MACHINE\\software\\Microsoft\\NET Framework Setup\\NDP\\v4",
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Tracing\\RASMANCS"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp"
    ],
    "fetches_url": [
        "http:\/\/d1416rsq1mwson.cloudfront.net\/SilentInstaller_dotnet2.exe"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\EnableConsoleTracing",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\EnableFileTracing",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\services\\crypt32\\DebugHeapFlags",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\MaxFileSize",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\MaxFileSize",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\EnableFileTracing",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\DisableImprovedZoneCheck",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\FileTracingMask",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\ConsoleTracingMask",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\FileDirectory",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\ConsoleTracingMask",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\FileDirectory",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Policies\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Security_HKLM_only",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\EnableConsoleTracing",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\FileTracingMask"
    ]
}

Generic

[
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\bb96adf02795bb542d13ff24aa1c55034afeccaf7c00e8059c0fb914d8fe8587.bin",
        "process_name": "bb96adf02795bb542d13ff24aa1c55034afeccaf7c00e8059c0fb914d8fe8587.bin",
        "pid": 2420,
        "summary": {
            "file_created": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib574C.tmp",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib574F.tmp",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib571C.tmp",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib5750.tmp",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib574E.tmp",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\hib574D.tmp"
            ],
            "regkey_written": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\EnableConsoleTracing",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\EnableFileTracing",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\MaxFileSize",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\FileTracingMask",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\ConsoleTracingMask",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\FileDirectory"
            ],
            "dll_loaded": [
                "CZlcZyl0.dll",
                "API-MS-WIN-Service-winsvc-L1-1-0.dll",
                "rtutils.dll",
                "API-MS-WIN-Service-Management-L1-1-0.dll",
                "WININET.dll",
                "kernel32.dll",
                "RASMAN.DLL",
                "Advapi32.dll",
                "CZlcZyl1.dll"
            ],
            "regkey_opened": [
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\crypt32",
                "HKEY_LOCAL_MACHINE\\Software\\Policies\\Microsoft\\Windows\\CurrentVersion\\Internet Settings",
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Tracing",
                "HKEY_LOCAL_MACHINE\\software\\Microsoft\\NET Framework Setup\\NDP\\v4",
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Tracing\\RASMANCS"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp"
            ],
            "fetches_url": [
                "http:\/\/d1416rsq1mwson.cloudfront.net\/SilentInstaller_dotnet2.exe"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\EnableConsoleTracing",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\EnableFileTracing",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\services\\crypt32\\DebugHeapFlags",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\MaxFileSize",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\MaxFileSize",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\EnableFileTracing",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\DisableImprovedZoneCheck",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\FileTracingMask",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\ConsoleTracingMask",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\FileDirectory",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\ConsoleTracingMask",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASMANCS\\FileDirectory",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Policies\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Security_HKLM_only",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\EnableConsoleTracing",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Tracing\\RASAPI32\\FileTracingMask"
            ]
        },
        "first_seen": 1597207989.609375,
        "ppid": 1268
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1597207989.34375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 2,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 7.504039341858373,
                "section": {
                    "size_of_data": "0x00010200",
                    "virtual_address": "0x00024000",
                    "entropy": 7.504039341858373,
                    "name": ".rsrc",
                    "virtual_size": "0x00010180"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            },
            {
                "entropy": 0.31009615384615385,
                "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": 662,
            "time": 6.21998405456543,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2134,
            "time": 6.172883987426758,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2462,
            "time": 4.156633138656616,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2790,
            "time": 6.18325400352478,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3118,
            "time": 4.6598711013793945,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3446,
            "time": 3.050753116607666,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 3774,
            "time": 4.186322927474976,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 10140,
            "time": 4.189587116241455,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 14332,
            "time": 6.267777919769287,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "b37d12f7de58f6abbee070d40e96d0444dd26681fcb0328f2bdcb8a723f18965",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "3a56ab7b1bbd16e3dc3889a351dcc79f199dd50c9f8aca0df4d5ab2b4e574117",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandbox

prepreinstaller_win2.exe removal instructions

The instructions below shows how to remove prepreinstaller_win2.exe with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the prepreinstaller_win2.exe file for removal, restart your computer and scan it again to verify that prepreinstaller_win2.exe has been successfully removed. Here are the removal instructions in more detail:

  1. Download and install FreeFixer: http://www.freefixer.com/download.html
  2. Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.
    Screenshot of Start Scan button
  3. When the scan is finished, locate prepreinstaller_win2.exe in the scan result and tick the checkbox next to the prepreinstaller_win2.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 prepreinstaller_win2.exe in the scan result.
    Red arrow point on the unwanted file
    c:\downloads\prepreinstaller_win2.exe
  4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the prepreinstaller_win2.exe file.
    Screenshot of Fix button
  5. Restart your computer.
  6. Start FreeFixer and scan your computer again. If prepreinstaller_win2.exe still remains in the scan result, proceed with the next step. If prepreinstaller_win2.exe is gone from the scan result you're done.
  7. If prepreinstaller_win2.exe still remains in the scan result, check its checkbox again in the scan result and click Fix.
  8. Restart your computer.
  9. Start FreeFixer and scan your computer again. Verify that prepreinstaller_win2.exe no longer appear in the scan result.
Please select the option that best describe your thoughts on the removal instructions given above








Free Questionnaires

Hashes [?]

PropertyValue
MD537dca0dd652506e8e93d2b7e150ea849
SHA256bb96adf02795bb542d13ff24aa1c55034afeccaf7c00e8059c0fb914d8fe8587

Error Messages

These are some of the error messages that can appear related to prepreinstaller_win2.exe:

prepreinstaller_win2.exe has encountered a problem and needs to close. We are sorry for the inconvenience.

prepreinstaller_win2.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.

prepreinstaller_win2.exe has stopped working.

End Program - prepreinstaller_win2.exe. This program is not responding.

prepreinstaller_win2.exe is not a valid Win32 application.

prepreinstaller_win2.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.

What will you do with the file?

To help other users, please let us know what you will do with the file:



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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