What is koseu.exe?

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

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

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

Digital signatures [?]

koseu.exe is not signed.

VirusTotal report

47 of the 71 anti-virus programs at VirusTotal detected the koseu.exe file. That's a 66% detection rate.

ScannerDetection Name
Acronis suspicious
Ad-Aware Trojan.GenericKD.31893564
AegisLab Trojan.Win32.Generic.4!c
AhnLab-V3 Trojan/Win32.MalPe.R265247
Alibaba Trojan:Win32/Kryptik.f4c541d2
ALYac Trojan.GenericKD.31893564
Arcabit Trojan.Generic.D1E6A83C
Avast Win32:MalwareX-gen [Trj]
AVG Win32:MalwareX-gen [Trj]
Avira TR/Crypt.Agent.mflbx
BitDefender Trojan.GenericKD.31893564
Bkav HW32.Packed.
CrowdStrike win/malicious_confidence_90% (W)
Cylance Unsafe
Cyren W32/Trojan.NNTE-6078
DrWeb Trojan.Siggen8.25004
Emsisoft Trojan.GenericKD.31893564 (B)
Endgame malicious (moderate confidence)
ESET-NOD32 a variant of Win32/Kryptik.GSES
F-Secure Trojan.TR/Crypt.Agent.mflbx
FireEye Generic.mg.2e14cd4a86780d11
Fortinet W32/Kryptik.GEI!tr
GData Win32.Packed.Kryptik.H0KPMJ
Ikarus Trojan.Win32.Crypt
Jiangmin Trojan.PSW.Azorult.bac
K7AntiVirus Riskware ( 0040eff71 )
K7GW Riskware ( 0040eff71 )
Kaspersky Trojan.Win32.Chapak.cvlz
Malwarebytes Trojan.MalPack.GS
McAfee RDN/Generic.dx
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
Microsoft Trojan:Win32/Tiggre!plock
MicroWorld-eScan Trojan.GenericKD.31893564
NANO-Antivirus Trojan.Win32.Chapak.fpgvls
Paloalto generic.ml
Panda Generic Malware
Qihoo-360 Win32/Trojan.3a6
Rising Trojan.Kryptik!8.8 (CLOUD)
SentinelOne DFI - Suspicious PE
Sophos Mal/Generic-S
Symantec ML.Attribute.HighConfidence
Tencent Win32.Trojan.Chapak.Hrpc
TrendMicro TROJ_GEN.R002C0WDI19
TrendMicro-HouseCall TROJ_GEN.R002C0WDI19
VBA32 BScope.Adware.Puwaders
Webroot W32.Trojan.Gen
ZoneAlarm Trojan.Win32.Chapak.cvlz
47 of the 71 anti-virus programs detected the koseu.exe file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1577080385.34375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 6,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "AFX_DIALOG_LAYOUT",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "GOMEMUJIYARILU",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "HEMABI",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "WIVAWITOGOROWOPA",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "ZIKIVEBUMIRIDIJUSEDEMANAYAMA",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "None",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_unknown_resource_name"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "Foreign language identified in PE resource",
        "severity": 2,
        "marks": [
            {
                "name": "RT_ACCELERATOR",
                "language": "LANG_KASHMIRI",
                "offset": "0x065af0b8",
                "filetype": "data",
                "sublanguage": "SUBLANG_KASHMIRI_SASIA",
                "type": "generic",
                "size": "0x000000b8"
            },
            {
                "name": "RT_ACCELERATOR",
                "language": "LANG_KASHMIRI",
                "offset": "0x065af0b8",
                "filetype": "data",
                "sublanguage": "SUBLANG_KASHMIRI_SASIA",
                "type": "generic",
                "size": "0x000000b8"
            }
        ],
        "references": [],
        "name": "origin_langid"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 7.591547771753058,
                "section": {
                    "size_of_data": "0x0004b600",
                    "virtual_address": "0x0656f000",
                    "entropy": 7.591547771753058,
                    "name": "UPX1",
                    "virtual_size": "0x0004c000"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            },
            {
                "entropy": 0.9804878048780488,
                "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"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The executable is compressed using UPX",
        "severity": 2,
        "marks": [
            {
                "section": "UPX0",
                "type": "generic",
                "description": "Section name indicates UPX"
            },
            {
                "section": "UPX1",
                "type": "generic",
                "description": "Section name indicates UPX"
            }
        ],
        "references": [],
        "name": "packer_upx"
    }
]

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": 3.078334093093872,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "192.168.56.255",
            "offset": 5226,
            "time": 9.07919716835022,
            "dport": 138,
            "sport": 138
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7070,
            "time": 3.0312321186065674,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7398,
            "time": 1.0789260864257812,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7726,
            "time": 3.041882038116455,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 8054,
            "time": 1.5826590061187744,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 8382,
            "time": -0.08510994911193848,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 8710,
            "time": 1.5940370559692383,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 28120,
            "time": 1.1092631816864014,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 36504,
            "time": 3.1097331047058105,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "5369dd1448b7ca236d166c1b4cbfce5b36096ae2b96131682b6f67134fcd29cb",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "865f5d9356fc56c7186b6c056474ea6eb76293159427cc2f99d328d1f62cd510",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandboxScreenshot from the sandbox

koseu.exe removal instructions

The instructions below shows how to remove koseu.exe with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the koseu.exe file for removal, restart your computer and scan it again to verify that koseu.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 koseu.exe in the scan result and tick the checkbox next to the koseu.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 koseu.exe in the scan result.
    Red arrow point on the unwanted file
    c:\downloads\koseu.exe
  4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the koseu.exe file.
    Screenshot of Fix button
  5. Restart your computer.
  6. Start FreeFixer and scan your computer again. If koseu.exe still remains in the scan result, proceed with the next step. If koseu.exe is gone from the scan result you're done.
  7. If koseu.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 koseu.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
MD52e14cd4a86780d11b56c53a0d766ce84
SHA2569d599eb243e82923241faa3b9d42987d065d46ea2e42ccfeee7b1c04a6555699

Error Messages

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

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

koseu.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.

koseu.exe has stopped working.

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

koseu.exe is not a valid Win32 application.

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

What will you do with koseu.exe?

To help other users, please let us know what you will do with koseu.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.

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