Foidan
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: | 5,613 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 382 |
| First Seen: | October 9, 2013 |
| Last Seen: | October 3, 2026 |
| OS(es) Affected: | Windows |
The Foidan family of Trojans is a group of threats that are designed to alter how the victim's Web browser behaves. Criminals may use Foidan to cause browser redirects, spy on the victim's online activities and take over the victim's Web browser in a variety of ways. Foidan attacks seldom occur on their own and Foidan Trojans may be coupled with other types of threats. If your computer is infected with a variety of Foidan, it is important to use a strong, reliable anti-malware application to protect your computer.
Table of Contents
Attack Tactics of Foidan and Similar Trojans
The origin of the Trojan name is the Trojan Horse from the Iliad. Like the legendary Trojan Horse, Trojans carry out a similar tactic to infiltrate a computer. A Trojan is usually disguised as a legitimate file or beneficial program which, once opened, delivers an unsafe payload in the form of harmful code that may cause a variety of problems on the victim's computer. Foidan Trojans are no exception. Trojans in the Foidan family of threats may be disguised as video codecs or as PDF file attachments. Once opened, they install threatening components on the victim's computer which are programed to seize the victim's PC and monitor its online activities. Trojans in the Foidan family may also cause other problems on the victim's computer, affecting the infected computer's performance and Internet connectivity. Other characteristics of some Foidan variants include the ability to block legitimate security software and make PC security researchers' work more difficult by preventing the study of these suspicious files on virtual machines or using tools commonly used to study threats in a control environment.
The Purpose of Trojans in the Foidan Family of Malware
In the end, the main purpose of threats in the Foidan family is to generate revenue at the expense of the computer user. Trojans that take over the victim's Web browser allow criminals to generate profits in a variety of ways. For example, criminals may use Foidan Trojans to spy on the victim's online activities. Data gathered in this way may be used to deliver targeted advertisements to the victim's Web browser. Foidan Trojans may also be used to force computer users to visit certain websites in order to boost these pages' page ranking and generate significant profits from advertising and marketing.
File System Details
Foidan may create the following file(s):
| # | File Name |
Detections
Detections: The number of confirmed and suspected cases of a particular threat detected on
infected computers as reported by SpyHunter.
|
|---|---|---|
| 1. | %APPDATA% \ie_util.exe | |
| 2. | %APPDATA% \fnmod_32.exe |
Registry Details
Foidan may create the following registry entry or registry entries:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "FNModuleUpdater" = "%APPDATA%\fnmod_32.exe"
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "IExplorer Util" = "%APPDATA%\ie_util.exe"
Analysis Report
General information
| Family Name: | Trojan.Snojan.A |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
5a06d1f46a3568555ea80d3b02ab0443
SHA1:
0d35a4b2732d6d8013289747a9e41343e37d4240
SHA256:
C7F8D6F9B3A499CCFEC213E0F9E9DB6CB9A3C03B09828728A511B44476F66F6C
File Size:
293.90 KB, 293896 bytes
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MD5:
21f6eb1da9c7664e41382851351a079e
SHA1:
4092ec265ec35015ef28f9845e0d1622d50383a3
SHA256:
785221E625C7C9B303B98010CCFEAA7EC1F723516C720B0964B2D9243811B74C
File Size:
1.72 MB, 1721335 bytes
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MD5:
ee90869706a564968bdba0743a0609ee
SHA1:
3bd89d549a0f6a108ae45168a35f0bdea7e1420f
SHA256:
06AB8FA823B7E7D99101ADF785125E2B55BABBBA3724B005C5546F9F5E6A64E6
File Size:
5.14 MB, 5139420 bytes
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MD5:
39a84b7f1339181b50f901153f469925
SHA1:
60f186d0605581f8a42cba5718d6499be377716b
SHA256:
D0F3C195C68A1F747BB90DAF85731B8C4E67AE19011BFF947BE4B530226A6AE2
File Size:
5.98 MB, 5983433 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 resources
- File doesn't have security information
- File has TLS information
- File is 32-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
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- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
- 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. |
| Company Name | FILSH Media GmbH |
| File Description |
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| Product Name |
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| Product Version |
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Digital Signatures
Digital Signatures
This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.| Signer | Root | Status |
|---|---|---|
| MicroWorld Technologies Inc. | Class 3 Public Primary Certification Authority | Root Not Trusted |
File Traits
- HighEntropy
- No Version Info
- packed
- 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: | 445 |
|---|---|
| Potentially Malicious Blocks: | 0 |
| Whitelisted Blocks: | 438 |
| Unknown Blocks: | 7 |
Visual Map
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0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - Unknown Block
x - Potentially Malicious Block
Similar Families
Similar Families
This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.- Trojan.Downloader.Gen.M
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\srvsvc | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.1.regtrans-ms | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.2.regtrans-ms | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\is-ut59q.tmp\3bd89d549a0f6a108ae45168a35f0bdea7e1420f_0005139420.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\rarsfx0 | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\__tmp_rar_sfx_access_check_9929125 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\asfbin.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\asfbin.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\atube catcher website.url | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\atube catcher website.url | Synchronize,Write Attributes |
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| c:\users\user\appdata\local\temp\rarsfx0\baseballglove.ico | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\baseballglove.ico | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\ffmpeg.dll | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\ffmpeg.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\gpm.ocx | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\gpm.ocx | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\libcurl.dll | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\libcurl.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\libeay32.dll | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\libeay32.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\libssl32.dll | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\libssl32.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\mscomctl.ocx | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\mscomctl.ocx | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\packetx.dll | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\packetx.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\pthreadgc2.dll | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\pthreadgc2.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\uninstall.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\uninstall.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\vbzlib1.dll | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\vbzlib1.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\rarsfx0\yct.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\rarsfx0\yct.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\roaming\microsoft\windows\recent\automaticdestinations\5f7b5f1e01b83767.automaticdestinations-ms | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\roaming\microsoft\windows\recent\automaticdestinations\f01b4d95cf55d32a.automaticdestinations-ms | Generic Read,Write Data,Write Attributes,Write extended,Append 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\ctf\msutb::left | Դ | RegNtPreCreateKey |
| HKCU\software\microsoft\ctf\msutb::top | RegNtPreCreateKey | |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | m v 8�1 �vT��� ����1��3bBx �R �7#��$kF%�&� '�(�(X�*J*9+��1�1HO =� @V� A��G�IH[uH�pI��K��N$N� Z^� _�za$b"hc�zg�Xh�rj�bk`k �k�qk�8 l(�q�Xr�BtǤvy�w�nx�z��{b��P� �jI�� | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | m w 8�1 �vT��� ����1��3bBx �R �7#��$kF%�&� '�(�(X�*J*9+��1�1HO =� @V� A��G�IH[uH�pI��K��N$N� Z^� _�za$b"hc�ze�vg�Xh�rj�bk`k �k�qk�8 l(�q�Xr�BtǤvy�w�nx�z��{b��P� �jI | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | m { 8�1 �vT��� ����1��3bBx �R �7#��$kF%�&� '�(�(X�*J*9+��0P%1�1HO =� @V� A��G�IH[uH�pI��K��N$N� Z^� \te_�za$b"hc�ze�vg�Xh�rj�bk`k �k�qk�8 l(�q�Xr�BtǤvy�w�nx�z��{b� | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 | 陽 ȁ ਪˣ 鈯ˣ 遙̃ 豤̃ 偫~ অˣ 炑̃ 龡^ 濖̃ 賬̃ 攘ť 獖}. 偫~. 엦1 ˣ 邯̃ 뫯ʃe D ꙥ䀠 엦1I ¶f ꙥi ƚ ꙥp ꙥr ¯ ֢ | RegNtPreCreateKey |
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| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | m } 8�1 �vT��� ����1��3bBx �R �7#��$kF%�&� '�(�(X�*J*9+��,=� 0P%1�1HO =� @V� A��G�IH[uH�pI��K��N$N� Z^� \te_�za$b"hc�ze�vg�Xh�rj�bk`k �k�qk�8 l(�q�Xr�BtǤvy�w�nx�y�9 | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | m ~ 8�1 �v �� T��� ����1��3bBx �R �7#��$kF%�&� '�(�(X�*J*9+��,=� 0P%1�1HO =� @V� A��G�IH[uH�pI��K��N$N� Z^� \te_�za$b"hc�ze�vg�Xh�rj�bk`k �k�qk�8 l(�q�Xr�BtǤvy�w�nx� | 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 |
|---|---|
| Network Winsock2 |
|
| Process Manipulation Evasion |
|
| Process Shell Execute |
|
| User Data Access |
|
| Keyboard Access |
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| Other Suspicious |
|
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.
"C:\Users\Iiurkvcs\AppData\Local\Temp\is-UT59Q.tmp\3bd89d549a0f6a108ae45168a35f0bdea7e1420f_0005139420.tmp" /SL5="$1203C4,4842264,64512,c:\users\user\downloads\3bd89d549a0f6a108ae45168a35f0bdea7e1420f_0005139420"
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(NULL) C:\Users\Cjjvxklu\AppData\Local\Temp\RarSFX0\yct.exe
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