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: | 20,443 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 424 |
| First Seen: | July 24, 2009 |
| Last Seen: | July 14, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Dropper.Agent.F indicates that your system has been compromised by a malicious threat. This type of malware is designed to secretly install and run other malicious programs on your computer, potentially leading to a range of problems, including data theft, system crashes, and unauthorized access to your personal information. It is essential to take immediate action to remove this threat and prevent further damage to your system.
Table of Contents
What Is Trojan.Dropper.Agent.F?
Trojan.Dropper.Agent.F is a type of Trojan horse malware, which is a broad category of malicious software that disguises itself as legitimate programs. The "Dropper" part of the name suggests that this malware is designed to install and run other malicious programs on your system. The exact nature and purpose of Trojan.Dropper.Agent.F can vary, but its primary goal is to compromise your system's security and potentially steal sensitive information or disrupt your computer's normal functioning.
How Trojan.Dropper.Agent.F Operates
Trojan.Dropper.Agent.F operates by exploiting vulnerabilities in your system's security, often through social engineering tactics or by exploiting weaknesses in software or operating system vulnerabilities. Once installed, it can download and install additional malware, create backdoors for remote access, or steal sensitive information such as login credentials, financial data, or personal files. The malware may also attempt to evade detection by anti-virus software, making it challenging to remove without proper guidance.
Symptoms of Infection
Systems infected with Trojan.Dropper.Agent.F may exhibit a range of symptoms, including slow system performance, frequent crashes, or unusual network activity. You may also notice unfamiliar programs or icons on your desktop, or receive unexpected pop-ups or alerts. In some cases, the malware may not display any obvious symptoms, making it difficult to detect without the use of anti-virus software.
- Unexplained changes to system settings or configuration
- Appearance of unfamiliar programs or files
- Increased network activity or unusual traffic patterns
- System crashes or freezes
- Slow system performance or responsiveness
How to Remove Trojan.Dropper.Agent.F
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for a clean scan.
- Use a reputable anti-virus tool, such as SpyHunter, to perform a full scan of your system and remove any detected malware.
- Uninstall any suspicious programs or applications that may be related to the malware.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
- Reboot your system and perform another scan to ensure that the malware has been completely removed.
Conclusion
Removing Trojan.Dropper.Agent.F from your system requires careful attention to detail and a thorough approach to ensure that all components of the malware are eliminated. By following the steps outlined above and using reputable anti-virus software, you can help protect your system and prevent further damage. It is essential to remain vigilant and take proactive steps to prevent future infections, including keeping your operating system and software up to date, using strong passwords, and avoiding suspicious downloads or email attachments.
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
| # | 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
|
|
MD5:
adbbe0ee66496461a6de94f74af5aaa1
SHA1:
63e393f8b8b0a243f81fa9cc997ef78803373913
SHA256:
A920E8C4550D5E87ECCF50E42386409B641D424244067BFCF483DEEC15D77723
File Size:
4.75 MB, 4753021 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.Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Comments | This installation was built with Inno Setup: http://www.innosetup.com |
| File Description | Curso BEST de Digitação Setup |
File Traits
- BINinO
- Inno
- InnoSetup Installer
- Installer Manifest
- Installer Version
- MZ (In Overlay)
- No Version Info
- Nullsoft Installer
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 189 |
|---|---|
| Potentially Malicious Blocks: | 11 |
| Whitelisted Blocks: | 178 |
| Unknown Blocks: | 0 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
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 |
|---|---|
| \device\namedpipe\gmdasllogger | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\zb2026163511840.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\zb202641256123.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\zbe2026163511840.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\zbe202641256123.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\ze2026163511840.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\ze202641256123.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\zx2026163511840.xml | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\zx202641256123.xml | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\maintenance\apps\maintenance.exe | Generic Write,Read Attributes |
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| 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 | � ! xy * � /�� Y� d� kP~ � � �ރ �p ��^ �o � ��z eeA Vs} kP~ ��1 p �� 7 � �� ﺃ e e�� � ��1 �� f e�� g | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | k 8��81z��B�8 �6 �v y� z�Z xy �� �a ۀT�B� ����� 1���� �5����ee +Bx �<�� 5 � �7 �!wz "M)"Wc#�#��$kF$�� %"�%:� %�&� &�x'�(�(X�)�`*J*9*�^+�[+��,=� ,�� | 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 | |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 | 闭 ȁ ਪˣ 鈯ˣ 遙̃ 豤̃ 偫~ অˣ 炑̃ 龡^ 濖̃ 賬̃ 攘ť" |