What is pub4.exe?
pub4.exe is usually located in the 'c:\downloads\' folder.
Some of the anti-virus scanners at VirusTotal detected pub4.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.
Digital signatures [?]
pub4.exe is not signed.
VirusTotal report
46 of the 71 anti-virus programs at VirusTotal detected the pub4.exe file. That's a 65% detection rate.
| Scanner | Detection Name |
|---|---|
| Acronis | suspicious |
| Ad-Aware | Trojan.GenericKD.31932992 |
| AhnLab-V3 | Malware/Win32.Generic.C3185966 |
| Alibaba | Trojan:Win32/GenKryptik.90e5b49e |
| ALYac | Trojan.GenericKD.31932992 |
| Antiy-AVL | Trojan[Backdoor]/Win32.Mokes |
| Arcabit | Trojan.Generic.D1E74240 |
| Avast | Win32:Trojan-gen |
| AVG | Win32:Trojan-gen |
| BitDefender | Trojan.GenericKD.31932992 |
| CrowdStrike | win/malicious_confidence_90% (W) |
| Cybereason | malicious.f7f3c3 |
| Cylance | Unsafe |
| Cyren | W32/Trojan.WPKE-0085 |
| DrWeb | Trojan.DownLoader27.64847 |
| Emsisoft | Trojan.GenericKD.31932992 (B) |
| Endgame | malicious (high confidence) |
| ESET-NOD32 | a variant of Win32/Kryptik.GSSK |
| FireEye | Generic.mg.a2eab4fdbe2e9cc7 |
| Fortinet | W32/Malicious_Behavior.SBX |
| GData | Trojan.GenericKD.31932992 |
| Ikarus | Trojan.Win32.Krypt |
| Invincea | heuristic |
| Jiangmin | Trojan.Banker.Jimmy.om |
| K7AntiVirus | Riskware ( 0040eff71 ) |
| K7GW | Riskware ( 0040eff71 ) |
| Kaspersky | Backdoor.Win32.Mokes.aegb |
| Malwarebytes | Trojan.MalPack.GS.Generic |
| MaxSecure | Trojan.Malware.74278178.susgen |
| McAfee | RDN/Generic Downloader.x |
| McAfee-GW-Edition | BehavesLike.Win32.MultiPlug.ch |
| Microsoft | TrojanDownloader:Win32/Dofoil.AH!bit |
| MicroWorld-eScan | Trojan.GenericKD.31932992 |
| NANO-Antivirus | Trojan.Win32.Mokes.fpuobt |
| Paloalto | generic.ml |
| Panda | Trj/Genetic.gen |
| Qihoo-360 | HEUR/QVM10.2.E41F.Malware.Gen |
| Rising | Downloader.Dofoil!8.322 (CLOUD) |
| SentinelOne | DFI - Suspicious PE |
| Sophos | Mal/Generic-S |
| Symantec | Trojan.Gen.MBT |
| Tencent | Win32.Backdoor.Mokes.Lnoc |
| Trapmine | suspicious.low.ml.score |
| TrendMicro-HouseCall | TROJ_FRS.VSN02E19 |
| ViRobot | Trojan.Win32.Z.Agent.175104.PU |
| ZoneAlarm | Backdoor.Win32.Mokes.aegb |
Sandbox Report
The following information was gathered by executing the file inside Cuckoo Sandbox.
Summary
Successfully executed process in sandbox.
Summary
{
"command_line": [
"\"C:\\Users\\cuck\\AppData\\Local\\Temp\\cfe8e48c2de3c7734ecac6b16814d227f9392fabc24f1d45f189cd45bf111c2c.bin\" "
],
"file_exists": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\apfHQ"
],
"regkey_opened": [
"HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Windows"
],
"regkey_read": [
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows NT\\CurrentVersion\\Windows\\LoadAppInit_DLLs"
],
"dll_loaded": [
"C:\\Windows\\system32\\IMM32.DLL",
"kernel32",
"gdi32.dll",
"user32",
"dwmapi.dll",
"ntdll.dll",
"C:\\Windows\\system32\\uxtheme.dll"
]
}Generic
[
{
"process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\cfe8e48c2de3c7734ecac6b16814d227f9392fabc24f1d45f189cd45bf111c2c.bin",
"process_name": "cfe8e48c2de3c7734ecac6b16814d227f9392fabc24f1d45f189cd45bf111c2c.bin",
"pid": 2968,
"summary": {},
"first_seen": 1568307194.4055,
"ppid": 2124
},
{
"process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\cfe8e48c2de3c7734ecac6b16814d227f9392fabc24f1d45f189cd45bf111c2c.bin",
"process_name": "cfe8e48c2de3c7734ecac6b16814d227f9392fabc24f1d45f189cd45bf111c2c.bin",
"pid": 2124,
"summary": {
"command_line": [
"\"C:\\Users\\cuck\\AppData\\Local\\Temp\\cfe8e48c2de3c7734ecac6b16814d227f9392fabc24f1d45f189cd45bf111c2c.bin\" "
],
"file_exists": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\apfHQ"
],
"regkey_opened": [
"HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Windows"
],
"regkey_read": [
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows NT\\CurrentVersion\\Windows\\LoadAppInit_DLLs"
],
"dll_loaded": [
"C:\\Windows\\system32\\IMM32.DLL",
"kernel32",
"gdi32.dll",
"user32",
"dwmapi.dll",
"ntdll.dll",
"C:\\Windows\\system32\\uxtheme.dll"
]
},
"first_seen": 1568307192.6094,
"ppid": 2504
},
{
"process_path": "C:\\Windows\\System32\\lsass.exe",
"process_name": "lsass.exe",
"pid": 476,
"summary": {},
"first_seen": 1568307192.3281,
"ppid": 376
}
]Signatures
[
{
"markcount": 1,
"families": [],
"description": "Checks if process is being debugged by a debugger",
"severity": 1,
"marks": [
{
"call": {
"category": "system",
"status": 0,
"stacktrace": [],
"last_error": 0,
"nt_status": -1073741772,
"api": "IsDebuggerPresent",
"return_value": 0,
"arguments": {},
"time": 1568307192.9534,
"tid": 2800,
"flags": {}
},
"pid": 2124,
"type": "call",
"cid": 106
}
],
"references": [],
"name": "checks_debugger"
},
{
"markcount": 0,
"families": [],
"description": "One or more potentially interesting buffers were extracted, these generally contain injected code, configuration data, etc.",
"severity": 2,
"marks": [],
"references": [],
"name": "dumped_buffer"
},
{
"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": 1,
"length": 45056,
"protection": 64,
"process_handle": "0xffffffff",
"base_address": "0x0060d000"
},
"time": 1568307192.9064,
"tid": 2800,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE"
}
},
"pid": 2124,
"type": "call",
"cid": 39
}
],
"references": [],
"name": "allocates_rwx"
},
{
"markcount": 2,
"families": [],
"description": "The binary likely contains encrypted or compressed data indicative of a packer",
"severity": 2,
"marks": [
{
"entropy": 7.0236441255112,
"section": {
"size_of_data": "0x0001be00",
"virtual_address": "0x00001000",
"entropy": 7.0236441255112,
"name": ".text",
"virtual_size": "0x0001bc18"
},
"type": "generic",
"description": "A section with a high entropy has been found"
},
{
"entropy": 0.65588235294118,
"type": "generic",
"description": "Overall entropy of this PE file is high"
}
],
"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": "Allocates execute permission to another process indicative of possible code injection",
"severity": 3,
"marks": [
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtAllocateVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2968,
"region_size": 40960,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"protection": 64,
"process_handle": "0x00000080",
"allocation_type": 12288,
"base_address": "0x00400000"
},
"time": 1568307192.9684,
"tid": 2800,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE",
"allocation_type": "MEM_COMMIT|MEM_RESERVE"
}
},
"pid": 2124,
"type": "call",
"cid": 130
}
],
"references": [],
"name": "allocates_execute_remote_process"
},
{
"markcount": 1,
"families": [],
"description": "Potential code injection by writing to the memory of another process",
"severity": 3,
"marks": [
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "WriteProcessMemory",
"return_value": 1,
"arguments": {
"process_identifier": 2968,
"buffer": "\u0000\u0000@\u0000",
"process_handle": "0x00000080",
"base_address": "0x7efde008"
},
"time": 1568307192.9684,
"tid": 2800,
"flags": {}
},
"pid": 2124,
"type": "call",
"cid": 133
}
],
"references": [],
"name": "injection_write_memory"
},
{
"markcount": 2,
"families": [],
"description": "Used NtSetContextThread to modify a thread in a remote process indicative of process injection",
"severity": 3,
"marks": [
{
"category": "Process injection",
"ioc": "Process 2124 called NtSetContextThread to modify thread in remote process 2968",
"type": "ioc",
"description": null
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtSetContextThread",
"return_value": 0,
"arguments": {
"thread_handle": "0x0000007c",
"registers": {
"eip": 2008678852,
"esp": 1638384,
"edi": 0,
"eax": 4205328,
"ebp": 0,
"edx": 0,
"ebx": 2130567168,
"esi": 0,
"ecx": 0
},
"process_identifier": 2968
},
"time": 1568307192.9684,
"tid": 2800,
"flags": {}
},
"pid": 2124,
"type": "call",
"cid": 134
}
],
"references": [
"www.endgame.com\/blog\/technical-blog\/ten-process-injection-techniques-technical-survey-common-and-trending-process"
],
"name": "injection_ntsetcontextthread"
},
{
"markcount": 2,
"families": [],
"description": "Resumed a suspended thread in a remote process potentially indicative of process injection",
"severity": 3,
"marks": [
{
"category": "Process injection",
"ioc": "Process 2124 resumed a thread in remote process 2968",
"type": "ioc",
"description": null
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtResumeThread",
"return_value": 0,
"arguments": {
"thread_handle": "0x0000007c",
"suspend_count": 1,
"process_identifier": 2968
},
"time": 1568307194.3434,
"tid": 2800,
"flags": {}
},
"pid": 2124,
"type": "call",
"cid": 135
}
],
"references": [
"www.endgame.com\/blog\/technical-blog\/ten-process-injection-techniques-technical-survey-common-and-trending-process"
],
"name": "injection_resumethread"
},
{
"markcount": 7,
"families": [],
"description": "Executed a process and injected code into it, probably while unpacking",
"severity": 5,
"marks": [
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "CreateProcessInternalW",
"return_value": 1,
"arguments": {
"thread_identifier": 2588,
"thread_handle": "0x0000007c",
"process_identifier": 2968,
"current_directory": "",
"filepath": "C:\\Users\\cuck\\AppData\\Local\\Temp\\cfe8e48c2de3c7734ecac6b16814d227f9392fabc24f1d45f189cd45bf111c2c.bin",
"track": 1,
"command_line": "\"C:\\Users\\cuck\\AppData\\Local\\Temp\\cfe8e48c2de3c7734ecac6b16814d227f9392fabc24f1d45f189cd45bf111c2c.bin\" ",
"filepath_r": "C:\\Users\\cuck\\AppData\\Local\\Temp\\cfe8e48c2de3c7734ecac6b16814d227f9392fabc24f1d45f189cd45bf111c2c.bin",
"stack_pivoted": 0,
"creation_flags": 134217732,
"process_handle": "0x00000080",
"inherit_handles": 0
},
"time": 1568307192.9684,
"tid": 2800,
"flags": {
"creation_flags": "CREATE_NO_WINDOW|CREATE_SUSPENDED"
}
},
"pid": 2124,
"type": "call",
"cid": 124
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtGetContextThread",
"return_value": 0,
"arguments": {
"thread_handle": "0x0000007c"
},
"time": 1568307192.9684,
"tid": 2800,
"flags": {}
},
"pid": 2124,
"type": "call",
"cid": 127
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtUnmapViewOfSection",
"return_value": 0,
"arguments": {
"process_identifier": 2968,
"region_size": 4096,
"process_handle": "0x00000080",
"base_address": "0x00400000"
},
"time": 1568307192.9684,
"tid": 2800,
"flags": {}
},
"pid": 2124,
"type": "call",
"cid": 129
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtAllocateVirtualMemory",
"return_value": 0,
"arguments": {
"process_identifier": 2968,
"region_size": 40960,
"stack_dep_bypass": 0,
"stack_pivoted": 0,
"heap_dep_bypass": 0,
"protection": 64,
"process_handle": "0x00000080",
"allocation_type": 12288,
"base_address": "0x00400000"
},
"time": 1568307192.9684,
"tid": 2800,
"flags": {
"protection": "PAGE_EXECUTE_READWRITE",
"allocation_type": "MEM_COMMIT|MEM_RESERVE"
}
},
"pid": 2124,
"type": "call",
"cid": 130
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "WriteProcessMemory",
"return_value": 1,
"arguments": {
"process_identifier": 2968,
"buffer": "\u0000\u0000@\u0000",
"process_handle": "0x00000080",
"base_address": "0x7efde008"
},
"time": 1568307192.9684,
"tid": 2800,
"flags": {}
},
"pid": 2124,
"type": "call",
"cid": 133
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtSetContextThread",
"return_value": 0,
"arguments": {
"thread_handle": "0x0000007c",
"registers": {
"eip": 2008678852,
"esp": 1638384,
"edi": 0,
"eax": 4205328,
"ebp": 0,
"edx": 0,
"ebx": 2130567168,
"esi": 0,
"ecx": 0
},
"process_identifier": 2968
},
"time": 1568307192.9684,
"tid": 2800,
"flags": {}
},
"pid": 2124,
"type": "call",
"cid": 134
},
{
"call": {
"category": "process",
"status": 1,
"stacktrace": [],
"api": "NtResumeThread",
"return_value": 0,
"arguments": {
"thread_handle": "0x0000007c",
"suspend_count": 1,
"process_identifier": 2968
},
"time": 1568307194.3434,
"tid": 2800,
"flags": {}
},
"pid": 2124,
"type": "call",
"cid": 135
}
],
"references": [],
"name": "injection_runpe"
}
]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": 3.1110100746155,
"dport": 137,
"sport": 137
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 5326,
"time": 3.018205165863,
"dport": 5355,
"sport": 51001
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 5654,
"time": 1.0158131122589,
"dport": 5355,
"sport": 53595
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 5982,
"time": 3.0636081695557,
"dport": 5355,
"sport": 53848
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 6310,
"time": 1.5180351734161,
"dport": 5355,
"sport": 54255
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 6638,
"time": -0.1014039516449,
"dport": 5355,
"sport": 55314
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 6966,
"time": 1.5315871238708,
"dport": 1900,
"sport": 1900
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 16764,
"time": 1.0461320877075,
"dport": 3702,
"sport": 49152
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 25148,
"time": 3.1410710811615,
"dport": 1900,
"sport": 53598
}
],
"dns_servers": [],
"http": [],
"icmp": [],
"smtp": [],
"tcp": [],
"smtp_ex": [],
"mitm": [],
"hosts": [],
"pcap_sha256": "f30a45c3b92ebc6448ddaf47cbda1de29bc32b6d03ea48578884253a7b6e59e2",
"dns": [],
"http_ex": [],
"domains": [],
"dead_hosts": [],
"sorted_pcap_sha256": "8064a5e08fc793ca3ddd73a3f46b725c21737556318a8a33cf831a385f352151",
"irc": [],
"https_ex": []
}Screenshots
pub4.exe removal instructions
The instructions below shows how to remove pub4.exe with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the pub4.exe file for removal, restart your computer and scan it again to verify that pub4.exe has been successfully removed. Here are the removal instructions in more detail:
- Download and install FreeFixer: http://www.freefixer.com/download.html
- Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.
- When the scan is finished, locate pub4.exe in the scan result and tick the checkbox next to the pub4.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 pub4.exe in the scan result.
c:\downloads\pub4.exe 
- Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the pub4.exe file.
- Restart your computer.
- Start FreeFixer and scan your computer again. If pub4.exe still remains in the scan result, proceed with the next step. If pub4.exe is gone from the scan result you're done.
- If pub4.exe still remains in the scan result, check its checkbox again in the scan result and click Fix.
- Restart your computer.
- Start FreeFixer and scan your computer again. Verify that pub4.exe no longer appear in the scan result.
Hashes [?]
| Property | Value |
|---|---|
| MD5 | a2eab4fdbe2e9cc7ae3d62d28e224356 |
| SHA256 | cfe8e48c2de3c7734ecac6b16814d227f9392fabc24f1d45f189cd45bf111c2c |
Error Messages
These are some of the error messages that can appear related to pub4.exe:
pub4.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
pub4.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.
pub4.exe has stopped working.
End Program - pub4.exe. This program is not responding.
pub4.exe is not a valid Win32 application.
pub4.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.
What will you do with pub4.exe?
To help other users, please let us know what you will do with pub4.exe:
What did other users do?
The poll result listed below shows what users chose to do with pub4.exe. 100% have voted for removal. Based on votes from 1 user.
| Votes | |||
|---|---|---|---|
| Keep | 0 % | 0 | |
| Remove | 100 % | 1 |
NOTE: Please do not use this poll as the only source of input to determine what you will do with pub4.exe. Only 1 user has voted so far so it does not offer a high degree of confidence.
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.
I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.
No comments posted yet.