What is PWRISOSH.DLL?

PWRISOSH.DLL is part of PowerISO Shell Dynamic Link Library and developed by Power Software Ltd according to the PWRISOSH.DLL version information.

PWRISOSH.DLL's description is "PowerISOShell DLL"

PWRISOSH.DLL is digitally signed by Power Software Limited.

PWRISOSH.DLL is usually located in the 'C:\Program Files\PowerISO\' folder.

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

VirusTotal report

2 of the 70 anti-virus programs at VirusTotal detected the PWRISOSH.DLL file. That's a 3% detection rate.

Scanner	Detection Name
Bkav	W64.HfsAdware.D281
Microsoft	PUA:Win32/InstallCore

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\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll",
        "UxTheme.dll",
        "imm32.dll"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll.manifest"
    ],
    "file_failed": [
        "\\??\\scdbus0",
        "\\??\\SCDEmuDev0",
        "\\??\\scdbus"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2336,
        "summary": {
            "file_failed": [
                "\\??\\scdbus0",
                "\\??\\SCDEmuDev0",
                "\\??\\scdbus"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll.manifest"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll",
                "UxTheme.dll",
                "imm32.dll"
            ]
        },
        "first_seen": 1576291985.8125,
        "ppid": 2740
    },
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2740,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll.manifest"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\99eb9d1ec8fb7884985729ec17b972e802cafed788ffc02e56e0618a6f9de494.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1576291985.640625,
        "ppid": 1664
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1576291985.34375,
        "ppid": 376
    }
]

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": "AVI",
                "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": 6.186958074569702,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5694,
            "time": 6.133336067199707,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6022,
            "time": 4.12160587310791,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6350,
            "time": 6.142912864685059,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6678,
            "time": 4.627691984176636,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7006,
            "time": 3.015110969543457,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 7334,
            "time": 4.6546790599823,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 20274,
            "time": 4.157150983810425,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 28658,
            "time": 6.255776882171631,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "c3341b6a977355fd15617d6ef6a34532b6828acd32d495011862d79316865516",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "6992bcb84146919669aac3984998a6adfe7fbc541bc475cbc3fe768e98edcf86",
    "irc": [],
    "https_ex": []
}

Screenshots

PWRISOSH.DLL removal instructions

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

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

   

   

   C:\Program Files\PowerISO\PWRISOSH.DLL

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

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

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