What is YiwanHelper.exe?

YiwanHelper.exe is part of YiwanHelper and developed by yiwanzhushou according to the YiwanHelper.exe version information.

YiwanHelper.exe's description is "YiwanHelper"

YiwanHelper.exe is digitally signed by ???.

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

Some of the anti-virus scanners at VirusTotal detected YiwanHelper.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.

VirusTotal report

14 of the 65 anti-virus programs at VirusTotal detected the YiwanHelper.exe file. That's a 22% detection rate.

Scanner	Detection Name
Avast	Win32:Malware-gen
AVG	Win32:Malware-gen
Avira	TR/Agent.ujfwz
CAT-QuickHeal	Trojan.IGENERIC
Comodo	Malware@#2s7wjxyjiauox
ESET-NOD32	a variant of Win32/Yiwanzhushou.A potentially unwanted
F-Secure	Trojan.TR/Agent.ujfwz
Fortinet	W32/Generic_PUA_JE.A
GData	Win32.Trojan.Agent.Q8BO33
Ikarus	PUA.Yiwanzhushou
K7AntiVirus	Adware ( 004feebc1 )
K7GW	Adware ( 004feebc1 )
Rising	Malware.Undefined!8.C (CLOUD)
Sophos	Generic PUA JE (PUA)

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": 1605365588.5625,
        "ppid": 376
    },
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\a6fb0cab5d3755605ff5f8cb15fca75972ef6eccf9da0b2b473c29afd190e162.bin",
        "process_name": "a6fb0cab5d3755605ff5f8cb15fca75972ef6eccf9da0b2b473c29afd190e162.bin",
        "pid": 2436,
        "summary": {},
        "first_seen": 1605365588.890625,
        "ppid": 2308
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "D:\\workspace\\yiwanplayer\\bin\\Release\\YiwanHelper.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "XLDL",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_unknown_resource_name"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "Foreign language identified in PE resource",
        "severity": 2,
        "marks": [
            {
                "name": "XLDL",
                "language": "LANG_CHINESE",
                "offset": "0x000ed3d0",
                "filetype": "Zip archive data, at least v2.0 to extract",
                "sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
                "type": "generic",
                "size": "0x0012d3ef"
            },
            {
                "name": "RT_VERSION",
                "language": "LANG_CHINESE",
                "offset": "0x000ed100",
                "filetype": "data",
                "sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
                "type": "generic",
                "size": "0x000002d0"
            }
        ],
        "references": [],
        "name": "origin_langid"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 7.9985712739695165,
                "section": {
                    "size_of_data": "0x0012da00",
                    "virtual_address": "0x000ed000",
                    "entropy": 7.9985712739695165,
                    "name": ".rsrc",
                    "virtual_size": "0x0012d940"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            },
            {
                "entropy": 0.6143075356415478,
                "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": 3.1553170680999756,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "192.168.56.255",
            "offset": 5226,
            "time": 9.236042976379395,
            "dport": 138,
            "sport": 138
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7070,
            "time": 3.01896595954895,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7398,
            "time": 1.0226969718933105,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7726,
            "time": 3.0881199836730957,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 8054,
            "time": 1.6735060214996338,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 8382,
            "time": -0.09446215629577637,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 8710,
            "time": 1.6095030307769775,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 28120,
            "time": 1.041532039642334,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 36504,
            "time": 3.1570799350738525,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "ad5fd9cab210ad95e46411dd69998d9e2277397f2557f2ad3c852531bb05bb26",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "8151d379b26e338faf1bc6e64d27fbc71de12a69596c1c43597a95face2f99f5",
    "irc": [],
    "https_ex": []
}

Screenshots

YiwanHelper.exe removal instructions

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

   
3. When the scan is finished, locate YiwanHelper.exe in the scan result and tick the checkbox next to the YiwanHelper.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 YiwanHelper.exe in the scan result.

   

   

   c:\downloads\YiwanHelper.exe

   
4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the YiwanHelper.exe file.

   
5. Restart your computer.
6. Start FreeFixer and scan your computer again. If YiwanHelper.exe still remains in the scan result, proceed with the next step. If YiwanHelper.exe is gone from the scan result you're done.
7. If YiwanHelper.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 YiwanHelper.exe no longer appear in the scan result.

Error Messages

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