What is AM_Delta_Patch_1.289.1412.0.exe?

AM_Delta_Patch_1.289.1412.0.exe is part of Microsoft Malware Protection and developed by Microsoft Corporation according to the AM_Delta_Patch_1.289.1412.0.exe version information.

AM_Delta_Patch_1.289.1412.0.exe's description is "Microsoft Antimalware WU Stub"

AM_Delta_Patch_1.289.1412.0.exe is digitally signed by Microsoft Corporation.

AM_Delta_Patch_1.289.1412.0.exe is usually located in the 'c:\Windows\SoftwareDistribution\Download\Install\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about AM_Delta_Patch_1.289.1412.0.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

None of the 66 anti-virus programs at VirusTotal detected the AM_Delta_Patch_1.289.1412.0.exe file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "file_failed": [
        "C:\\Windows\\System32\\MpSigStub.exe"
    ],
    "file_exists": [
        "C:\\Windows\\System32\\advapi32.dll",
        "C:\\Windows\\System32\\version.dll"
    ],
    "regkey_opened": [
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows Defender\\Features",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\MpSigStub"
    ],
    "regkey_written": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\MpSigStub\\LastStartTime",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\MpSigStub\\LastExitCode"
    ],
    "dll_loaded": [
        "kernel32",
        "C:\\Windows\\system32\\advapi32.dll",
        "C:\\Windows\\system32\\version.dll"
    ]
}

Generic

[
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\b0683ec59d4da15c879aee911a57163a6d6f0f8dbcba668644243443b6f0049d.bin",
        "process_name": "b0683ec59d4da15c879aee911a57163a6d6f0f8dbcba668644243443b6f0049d.bin",
        "pid": 2816,
        "summary": {
            "file_failed": [
                "C:\\Windows\\System32\\MpSigStub.exe"
            ],
            "file_exists": [
                "C:\\Windows\\System32\\advapi32.dll",
                "C:\\Windows\\System32\\version.dll"
            ],
            "regkey_opened": [
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows Defender\\Features",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\MpSigStub"
            ],
            "regkey_written": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\MpSigStub\\LastStartTime",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\MpSigStub\\LastExitCode"
            ],
            "dll_loaded": [
                "kernel32",
                "C:\\Windows\\system32\\advapi32.dll",
                "C:\\Windows\\system32\\version.dll"
            ]
        },
        "first_seen": 1598237588.59375,
        "ppid": 2016
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1598237588.328125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "MpWUStub.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "BINARY",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "CABINET",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_unknown_resource_name"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "Searches running processes potentially to identify processes for sandbox evasion, code injection or memory dumping",
        "severity": 2,
        "marks": [
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "Process32NextW",
                    "return_value": 1,
                    "arguments": {
                        "process_name": "b0683ec59d4da15c879aee911a57163a6d6f0f8dbcba668644243443b6f0049d.bin",
                        "snapshot_handle": "0x0000005c",
                        "process_identifier": 2816
                    },
                    "time": 1598237588.70375,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 84
            }
        ],
        "references": [],
        "name": "injection_process_search"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 7.791990024435307,
                "section": {
                    "size_of_data": "0x00005600",
                    "virtual_address": "0x00034000",
                    "entropy": 7.791990024435307,
                    "name": ".rsrc",
                    "virtual_size": "0x00005594"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            }
        ],
        "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": 1,
        "families": [],
        "description": "Expresses interest in specific running processes",
        "severity": 2,
        "marks": [
            {
                "category": "process",
                "ioc": "b0683ec59d4da15c879aee911a57163a6d6f0f8dbcba668644243443b6f0049d.bin",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "process_interest"
    }
]

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": 3.0789239406585693,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2234,
            "time": 3.018826961517334,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2562,
            "time": 1.023597002029419,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2890,
            "time": 3.028247833251953,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3218,
            "time": 1.53460693359375,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3546,
            "time": -0.09092211723327637,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 3874,
            "time": 1.082165002822876,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 9252,
            "time": 1.0440938472747803,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 13444,
            "time": 3.0943520069122314,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "04be24d4e7bcacfe799b871cc3cb185ab572272d329d07895c296165eb068850",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "b3af6a877ab82191daf8d0ec9c31905a11966f9a1afb176de96a298084aea6e6",
    "irc": [],
    "https_ex": []
}

Screenshots

Error Messages

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.

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