What is cex0.exe?

cex0.exe is usually located in the 'c:\downloads\' folder.

Some of the anti-virus scanners at VirusTotal detected cex0.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 [?]

cex0.exe does not have any version or vendor information.

Digital signatures [?]

cex0.exe is not signed.

VirusTotal report

39 of the 67 anti-virus programs at VirusTotal detected the cex0.exe file. That's a 58% detection rate.

ScannerDetection Name
Ad-Aware Trojan.GenericKD.31861843
AegisLab Trojan.Win32.Generic.4!c
AhnLab-V3 Trojan/Win32.Kryptik.C3142575
ALYac Trojan.GenericKD.31861843
Arcabit Trojan.Generic.D1E62C53
Avast Win32:Trojan-gen
AVG Win32:Trojan-gen
Avira TR/AD.Dofoil.xzjyz
BitDefender Trojan.GenericKD.31861843
Comodo Malware@#3ock6jbokrhi6
CrowdStrike win/malicious_confidence_60% (W)
Cyren W32/Trojan.TCHF-9118
DrWeb Trojan.Encoder.26375
Emsisoft Trojan.GenericKD.31861843 (B)
Endgame malicious (moderate confidence)
ESET-NOD32 a variant of Win32/Kryptik.GRTO
F-Secure Trojan.TR/AD.Dofoil.xzjyz
FireEye Generic.mg.95568101c8d70c90
Fortinet W32/Kryptik.GRTO!tr
GData Trojan.GenericKD.31861843
Ikarus Trojan.Win32.Crypt
K7AntiVirus Trojan ( 0054b5311 )
K7GW Trojan ( 0054b5311 )
Kaspersky Backdoor.Win32.Mokes.abdm
Malwarebytes Trojan.MalPack.GS
MAX malware (ai score=100)
McAfee RDN/Generic.tfr
McAfee-GW-Edition BehavesLike.Win32.Generic.cc
Microsoft Trojan:Win32/Skeeyah.A!bit
MicroWorld-eScan Trojan.GenericKD.31861843
Paloalto generic.ml
Panda Trj/GdSda.A
Qihoo-360 HEUR/QVM11.1.51C3.Malware.Gen
SentinelOne DFI - Suspicious PE
Sophos Mal/Generic-S
Tencent Win32.Backdoor.Mokes.Hsig
Trapmine malicious.moderate.ml.score
TrendMicro-HouseCall TROJ_GEN.R002H0CD719
ZoneAlarm Backdoor.Win32.Mokes.abdm
39 of the 67 anti-virus programs detected the cex0.exe file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ],
    "dll_loaded": [
        "kernel32.dll",
        "GDI32.dll",
        "SHELL32.dll",
        "KERNEL32.DLL",
        "WINSPOOL.DRV",
        "ADVAPI32.dll",
        "ole32.dll",
        "USER32.dll",
        "WINHTTP.dll"
    ]
}

Generic

[
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e75a3673f1df10d1bfbc4b58a75bb666e7feb338237360188f1c03cf0f4c96c.bin",
        "process_name": "5e75a3673f1df10d1bfbc4b58a75bb666e7feb338237360188f1c03cf0f4c96c.bin",
        "pid": 2816,
        "summary": {
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ],
            "dll_loaded": [
                "kernel32.dll",
                "GDI32.dll",
                "SHELL32.dll",
                "KERNEL32.DLL",
                "WINSPOOL.DRV",
                "ADVAPI32.dll",
                "ole32.dll",
                "USER32.dll",
                "WINHTTP.dll"
            ]
        },
        "first_seen": 1583617989.609375,
        "ppid": 2016
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1583617989.34375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "The executable uses a known packer",
        "severity": 1,
        "marks": [
            {
                "category": "packer",
                "ioc": "UPX 2.90 [LZMA] -> Markus Oberhumer, Laszlo Molnar & John Reiser",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "peid_packer"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "Allocates read-write-execute memory (usually to unpack itself)",
        "severity": 2,
        "marks": [
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtProtectVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 2816,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 1,
                        "length": 40960,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "base_address": "0x02142000"
                    },
                    "time": 1583617990.296375,
                    "tid": 2420,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE"
                    }
                },
                "pid": 2816,
                "type": "call",
                "cid": 232
            }
        ],
        "references": [],
        "name": "allocates_rwx"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 7.83009074154635,
                "section": {
                    "size_of_data": "0x0002b800",
                    "virtual_address": "0x01ba6000",
                    "entropy": 7.83009074154635,
                    "name": "UPX1",
                    "virtual_size": "0x0002c000"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            },
            {
                "entropy": 0.9230769230769231,
                "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": 3.0782551765441895,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2018,
            "time": 3.0397839546203613,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2346,
            "time": 1.0181779861450195,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2674,
            "time": 3.052338123321533,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3002,
            "time": 1.5183320045471191,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3330,
            "time": -0.09775495529174805,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 3658,
            "time": 1.533074140548706,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6986,
            "time": 1.0392670631408691,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 11178,
            "time": 3.140779972076416,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "d1dcb816b85089cc4083062326d4e5fca18f07e8a562021213d7ed3ffdb228bb",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "02adbf9631943e6664618ff44ed2206c77f4149b01c8f37f46c9b7bd5019eb2f",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandbox

cex0.exe removal instructions

The instructions below shows how to remove cex0.exe with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the cex0.exe file for removal, restart your computer and scan it again to verify that cex0.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 cex0.exe in the scan result and tick the checkbox next to the cex0.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 cex0.exe in the scan result.
    Red arrow point on the unwanted file
    c:\downloads\cex0.exe
  4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the cex0.exe file.
    Screenshot of Fix button
  5. Restart your computer.
  6. Start FreeFixer and scan your computer again. If cex0.exe still remains in the scan result, proceed with the next step. If cex0.exe is gone from the scan result you're done.
  7. If cex0.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 cex0.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
MD595568101c8d70c9094f59f1146e916b6
SHA2565e75a3673f1df10d1bfbc4b58a75bb666e7feb338237360188f1c03cf0f4c96c

Error Messages

These are some of the error messages that can appear related to cex0.exe:

cex0.exe has encountered a problem and needs to close. We are sorry for the inconvenience.

cex0.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.

cex0.exe has stopped working.

End Program - cex0.exe. This program is not responding.

cex0.exe is not a valid Win32 application.

cex0.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.

What will you do with cex0.exe?

To help other users, please let us know what you will do with cex0.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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