Trojan.Dropper.Agent.F
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Popularity Rank: | 10,302 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 413 |
| First Seen: | July 24, 2009 |
| Last Seen: | January 5, 2026 |
| OS(es) Affected: | Windows |
Table of Contents
Aliases
15 security vendors flagged this file as malicious.
| Antivirus Vendor | Detection |
|---|---|
| Symantec | MicroBillSys |
| Sophos | Micro Bill Systems |
| Panda | Generic Trojan |
| NOD32 | probably unknown NewHeur_PE |
| McAfee-GW-Edition | Trojan.Backdoor.Delf.bob |
| McAfee | potentially unwanted program MicroBillSystems |
| K7AntiVirus | Backdoor.Win32.Delf |
| Ikarus | Trojan.Win32.Agent |
| Fortinet | FakeBillPayment.A!tr |
| Comodo | Backdoor.Win32.Delf.bob |
| ClamAV | Trojan.Agent-14263 |
| CAT-QuickHeal | Backdoor.Delf.bob |
| BitDefender | Trojan.Fakebillpayment.A |
| AVG | BackDoor.Generic9.JPO |
| Avast | Win32:Delf-GMS |
SpyHunter Detects & Remove Trojan.Dropper.Agent.F
File System Details
Trojan.Dropper.Agent.F may create the following file(s):
| # | File Name | MD5 |
Detections
Detections: The number of confirmed and suspected cases of a particular threat detected on
infected computers as reported by SpyHunter.
|
|---|---|---|---|
| 1. | smvalid.exe | 1569ee7b217e58d5215289a85d8735e2 | 0 |
Analysis Report
General information
| Family Name: | Trojan.Dropper.Agent.F |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
1e6a5c5d3f850c1b22fd7d61b01ede09
SHA1:
4c8ba508bf33219802fed48e1c54b4d62bdce03c
SHA256:
BF6B9D973054129530B1DA87FAB5878B45D092AB824929471649C743B528215D
File Size:
2.62 MB, 2623832 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have exports table
- File doesn't have relocations information
- File doesn't have security information
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
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- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
File Traits
- BINinO
- Installer Manifest
- MZ (In Overlay)
- No Version Info
- Nullsoft Installer
- x86
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| c:\users\user\appdata\local\temp\zb2026163511840.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\zbe2026163511840.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\ze2026163511840.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\zx2026163511840.xml | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\maintenance\apps\maintenance.exe | Generic Write,Read Attributes |
| c:\users\user\downloads\4c8ba508bf33219802fed48e1c54b4d62bdce03c_0002623832 | Synchronize,Write Data |
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | RegNtPreCreateKey | |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 㢕뛭线ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 깴뜂线ǜ | RegNtPreCreateKey |
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| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 | RegNtPreCreateKey | |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | RegNtPreCreateKey |
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| User Data Access |
|
| Process Manipulation Evasion |
|
| Process Shell Execute |
|
| Syscall Use |
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|
| Anti Debug |
|
| Process Terminate |
|
Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
open C:\Users\Cmrxamlh\AppData\Local\Temp\zbe2026163511840.bat
|
open C:\Users\Cmrxamlh\AppData\Local\Temp\zb2026163511840.bat
|
C:\WINDOWS\system32\schtasks.exe Schtasks.Exe /delete /tn "Maintenance" /f
|
WriteConsole: Access is denied
|
C:\WINDOWS\system32\schtasks.exe Schtasks.Exe /create /tn "Maintenance" /xml "C:\Users\Cmrxamlh\AppData\Local\Temp\zx2026163511840.xml"
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WriteConsole: Access is denied
|
C:\WINDOWS\system32\chcp.com chcp 1251
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WriteConsole: Active code page
|
WriteConsole: 1 file(s
|
C:\WINDOWS\system32\timeout.exe timeout /t 3 /nobreak
|
WriteConsole:
Waiting for 3
|
WriteConsole: seconds, press
|
WriteConsole: 0832
|
WriteConsole: 0831
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