What is mscorsvw.exe?

mscorsvw.exe is part of Microsoft® .NET Framework and developed by Microsoft Corporation according to the mscorsvw.exe version information.

mscorsvw.exe's description is ".NET Runtime Optimization Service"

mscorsvw.exe is usually located in the 'c:\windows\microsoft.net\framework\v4.0.30319\' folder.

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

62 of the 73 anti-virus programs at VirusTotal detected the mscorsvw.exe file. That's a 85% detection rate.

Scanner	Detection Name
Ad-Aware	Win32.Parite.B
AhnLab-V3	Win32/Parite
ALYac	Win32.Parite.B
Antiy-AVL	Virus/Win32.Parite.c
Arcabit	Win32.Parite.B
Avast	Win32:Parite
AVG	Win32:Parite
Avira	W32/Parite
Baidu	Win32.Virus.Parite.d
BitDefender	Win32.Parite.B
Bkav	W32.Pinfi.B
CAT-QuickHeal	W32.Perite.A
ClamAV	Heuristics.W32.Parite.B
CMC	Virus.Win32.Parite.b!O
Comodo	Virus.Win32.Parite.gen@1dp8c4
CrowdStrike	win/malicious_confidence_100% (D)
Cybereason	malicious.d5ce6d
Cylance	Unsafe
Cyren	W32/Parite.LAQX-0866
DrWeb	Win32.Parite.2
eGambit	PE.Heur.InvalidSig
Emsisoft	Win32.Parite.B (B)
Endgame	malicious (high confidence)
ESET-NOD32	Win32/Parite.B
F-Prot	W32/Parite.B@mm
F-Secure	Malware.W32/Parite
FireEye	Generic.mg.80dde01d5ce6daa1
Fortinet	W32/Parite.B
GData	Win32.Parite.B
Ikarus	Virus.Win32.Parite
Invincea	heuristic
Jiangmin	Win32/Parite.b
K7AntiVirus	Virus ( 00001b711 )
K7GW	Virus ( 00001b711 )
Kaspersky	Virus.Win32.Parite.b
Kingsoft	Win32.Parite.b.5756
MAX	malware (ai score=80)
MaxSecure	Virus.Parite.B
McAfee	W32/Pate.b
McAfee-GW-Edition	BehavesLike.Win32.Pate.dc
Microsoft	Virus:Win32/Parite.B
MicroWorld-eScan	Win32.Parite.B
NANO-Antivirus	Virus.Win32.Parite.bgvo
Panda	W32/Parite.B
Qihoo-360	Virus.Win32.Parite.H
Rising	Virus.Parite!1.9B80 (CLASSIC)
SentinelOne	DFI - Malicious PE
Sophos	W32/Parite-B
Symantec	W32.Pinfi.B
TACHYON	Virus/W32.Parite.C
Tencent	Virus.Win32.Dropper.c
TheHacker	W32/Pate.B
TotalDefense	Win32/Pinfi.A
TrendMicro	PE_PARITE.A
TrendMicro-HouseCall	PE_PARITE.A
VBA32	Virus.Win32.Parite.b
VIPRE	Win32.Parite.b (v)
ViRobot	Win32.Parite.A
Yandex	Win32.Parite.B
Zillya	Virus.Parite.Win32.9
ZoneAlarm	Virus.Win32.Parite.b
Zoner	Trojan.Win32.Parite.22014

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": 1573815184.328125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "mscorsvw.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "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": ".tqn\\x07",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_features"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 7.109186329706149,
                "section": {
                    "size_of_data": "0x00000600",
                    "virtual_address": "0x0001a000",
                    "entropy": 7.109186329706149,
                    "name": ".tqn\\x07",
                    "virtual_size": "0x00001000"
                },
                "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"
    }
]

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": 6.216947078704834,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4434,
            "time": 6.17404317855835,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4762,
            "time": 4.148391008377075,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5090,
            "time": 6.184302091598511,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5418,
            "time": 4.657042026519775,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5746,
            "time": 3.038861036300659,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6074,
            "time": 4.670483112335205,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 14756,
            "time": 4.183849096298218,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 18948,
            "time": 6.263996124267578,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "e53ef1762366d8619dee131d08a566eaf6de67d6fb144e483eea5056c0453ae7",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "447f4bd4cf0cf68ca2c7202178a82dcd659bd20c0aed4e5ed5a0d979b06da00b",
    "irc": [],
    "https_ex": []
}

Screenshots

mscorsvw.exe removal instructions

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

   

   

   c:\windows\microsoft.net\framework\v4.0.30319\mscorsvw.exe

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

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

Other files also named mscorsvw.exe

mscorsvw.exe (53 votes)

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