What is JmwYdYxMrRV.dll?

JmwYdYxMrRV.dll is usually located in the 'c:\users\%USERNAME%\appdata\local\temp\nsu76c3.tmp\' folder.

Some of the anti-virus scanners at VirusTotal detected JmwYdYxMrRV.dll.

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 [?]

JmwYdYxMrRV.dll does not have any version or vendor information.

Digital signatures [?]

JmwYdYxMrRV.dll is not signed.

VirusTotal report

3 of the 66 anti-virus programs at VirusTotal detected the JmwYdYxMrRV.dll file. That's a 5% detection rate.

ScannerDetection Name
CrowdStrike win/malicious_confidence_80% (D)
Endgame malicious (high confidence)
Trapmine malicious.moderate.ml.score
3 of the 66 anti-virus programs detected the JmwYdYxMrRV.dll file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\13977e06840662cef8d3a5beafaa6e3ca684c703797562fbd57997e420500aca.bin.dll.manifest",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\13977e06840662cef8d3a5beafaa6e3ca684c703797562fbd57997e420500aca.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ],
    "dll_loaded": [
        "kernel32",
        "api-ms-win-core-fibers-l1-1-1",
        "api-ms-win-core-localization-l1-2-1",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\13977e06840662cef8d3a5beafaa6e3ca684c703797562fbd57997e420500aca.bin.dll",
        "advapi32",
        "api-ms-win-core-synch-l1-2-0"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2124,
        "summary": {
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\13977e06840662cef8d3a5beafaa6e3ca684c703797562fbd57997e420500aca.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\13977e06840662cef8d3a5beafaa6e3ca684c703797562fbd57997e420500aca.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ],
            "dll_loaded": [
                "kernel32",
                "api-ms-win-core-fibers-l1-1-1",
                "api-ms-win-core-localization-l1-2-1",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\13977e06840662cef8d3a5beafaa6e3ca684c703797562fbd57997e420500aca.bin.dll",
                "advapi32",
                "api-ms-win-core-synch-l1-2-0"
            ]
        },
        "first_seen": 1604461989.75,
        "ppid": 2504
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1604461989.34375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": ".gfids",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_features"
    },
    {
        "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": 2124,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 0,
                        "length": 4096,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "base_address": "0x74f37000"
                    },
                    "time": 1604461989.844,
                    "tid": 2800,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE"
                    }
                },
                "pid": 2124,
                "type": "call",
                "cid": 10
            }
        ],
        "references": [],
        "name": "allocates_rwx"
    }
]

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": 6.220364093780518,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3462,
            "time": 6.178169012069702,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3790,
            "time": 4.152915000915527,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4118,
            "time": 6.189176082611084,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4446,
            "time": 4.660794973373413,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4774,
            "time": 3.0428659915924072,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 5102,
            "time": 4.657294988632202,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 11572,
            "time": 4.173129081726074,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 15764,
            "time": 6.266852140426636,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "2ff32e0a0d90d67c75a4d15c8e53a02d25486e4a22ddb32e2b359192b2c4d894",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "f04325eea9224d9c8614ab48c89ddbe56f1613e4dfab2bb5b316f78b4df3be88",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandbox

JmwYdYxMrRV.dll removal instructions

The instructions below shows how to remove JmwYdYxMrRV.dll with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the JmwYdYxMrRV.dll file for removal, restart your computer and scan it again to verify that JmwYdYxMrRV.dll 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 JmwYdYxMrRV.dll in the scan result and tick the checkbox next to the JmwYdYxMrRV.dll 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 JmwYdYxMrRV.dll in the scan result.
    Red arrow point on the unwanted file
    c:\users\%USERNAME%\appdata\local\temp\nsu76c3.tmp\JmwYdYxMrRV.dll
  4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the JmwYdYxMrRV.dll file.
    Screenshot of Fix button
  5. Restart your computer.
  6. Start FreeFixer and scan your computer again. If JmwYdYxMrRV.dll still remains in the scan result, proceed with the next step. If JmwYdYxMrRV.dll is gone from the scan result you're done.
  7. If JmwYdYxMrRV.dll 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 JmwYdYxMrRV.dll 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
MD5adea7ef02a92f96e785707c5d4431bb3
SHA25613977e06840662cef8d3a5beafaa6e3ca684c703797562fbd57997e420500aca

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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.

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