What is bootsect.exe.mui?

bootsect.exe.mui is part of Microsoft® Windows® Operating System and developed by Microsoft Corporation according to the bootsect.exe.mui version information.

bootsect.exe.mui's description is "Boot Sector Manipulation Tool"

bootsect.exe.mui is usually located in the 'h:\Windows7\boot\de-de\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about bootsect.exe.mui.

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

None of the 66 anti-virus programs at VirusTotal detected the bootsect.exe.mui file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "dll_loaded": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll.manifest",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2124,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1562961184.6562,
        "ppid": 1664
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1562961184.3438,
        "ppid": 376
    },
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2500,
        "summary": {
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e295047df88b0ed4625ded4e7e3f2efb7abded14631135085424e5a7aab25b0b.bin.dll"
            ]
        },
        "first_seen": 1562961184.9844,
        "ppid": 2124
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "MUI",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_unknown_resource_name"
    }
]

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": 6.2086050510406,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5190,
            "time": 6.1434209346771,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5518,
            "time": 4.1620969772339,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5846,
            "time": 6.1513130664825,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6174,
            "time": 4.6776039600372,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6502,
            "time": 3.0515420436859,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6830,
            "time": 4.7078440189362,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 15512,
            "time": 4.2061190605164,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 19704,
            "time": 6.2584810256958,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "abed3f13d26bbc7876900e821e236041e11366942d193ad6f188545eadc899e6",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "241656e44dfbccdcf1f3bab9cb00926b232aafc69dfcbf1f38afc01915acf83e",
    "irc": [],
    "https_ex": []
}

Screenshots

What did other users do?

The poll result listed below shows what users chose to do with the file. 60% have voted for removal. Based on votes from 5 users.

NOTE: Please do not use this poll as the only source of input to determine what you will do with the file. Only 5 users has voted so far so it does not offer a high degree of confidence.

Malware or legitimate?

If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.

And now some shameless self promotion ;)

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