Win32:Ransom-AOQ
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: | 19,132 |
| Threat Level: | 60 % (Medium) |
| Infected Computers: | 8 |
| First Seen: | August 21, 2013 |
| Last Seen: | April 28, 2026 |
| OS(es) Affected: | Windows |
Win32:Ransom-AOQ is a dangerous ransomware Trojan that encrypts your files and then charges you to decrypt them. The Win32:Ransom-AOQ Trojan may be used to steal private information from your computer that can then be used to steal your identity or carry out other types of online fraud. In the long run, this may be used to steal sensitive business-related data, banking credentials, or other important data that may allow criminals to impersonate you, steal your money or profit at your expense in other ways. Win32:Ransom-AOQ Is related to a fraudulent online service that offers to decrypt files on your computer. The service associated with Win32:Ransom-AOQ, named 'No Problem Bro' supposedly helps computer users recover passwords after having forgotten them. However, Win32:Ransom-AOQ's attack is actually much more dangerous than Win32:Ransom-AOQ seems.
Win32:Ransom-AOQ and the Misleading 'No Problem Bro'
'No Problem Bro' offers its decryption services in exchange for anonymous online payment methods such as WMZ or bitcoin. However, this service is actually used to distribute Win32:Ransom-AOQ. This is often distributed as a decoy PDF file that actually encloses an executable file. In the background, this malicious executable file installs malware on the victim's computer and carries out various harmful changes to the infected computer's settings. Once installed, Win32:Ransom-AOQ first ensures that Win32:Ransom-AOQ has not been installed on a virtual machine of on a computer used by PC security researchers to analyze malware. If Win32:Ransom-AOQ does, then the Win32:Ransom-AOQ infection shuts down and deletes itself. Win32:Ransom-AOQ also verifies the infected computer's IP address and attempts to connect to the Internet. Win32:Ransom-AOQ connects to the 'No Problem Bro' website and downloads a malicious RAR file that encrypts files on the victim's computer and deletes all detected back-up files. Win32:Ransom-AOQ also drops text files containing information relating to this bogus decryption service. Essentially, Win32:Ransom-AOQ blocks all access to the victim's files and then demands payment in order to restore them to normality.
Do not Fall for the Win32:Ransom-AOQ Scam
There's a way to restore the deleted files from your computer by using a recovery utility. It may also be attainable to bring them back if your traffic goes through a proxy server. To prevent these kinds of scams, ESG security researchers strongly advise computer users to back up all of their files. In case that the computer user has a suitable backup, dealing with this attack would entail the removal of the malware threat and then restoring all the compromised files from their backed up copies.
Analysis Report
General information
| Family Name: | Backdoor.Zegost.CB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
45dc749351fd65d71da89ca2ed2766cb
SHA1:
e080faf81157b7f867cb56938c5e579c206af9b9
SHA256:
391109432BA2DF9F3EBC74E0144F42A490405F7C8ECB51DA01B4CE793BE72F25
File Size:
65.54 KB, 65536 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have security information
- File has exports table
- File is 32-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
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 |
|---|---|
| Company Name | Sogou.com Inc. |
| File Description | 搜狗拼音输入法 语言栏支持 |
| File Version | 5.0.0.3787 |
| Internal Name | SogouPY SogouTSF |
| Legal Copyright | ? 2010 Sogou.com Inc. All rights reserved. |
| Original Filename | SogouTSF.dll |
| Product Name | 搜狗拼音输入法 |
| Product Version | 5.0.0.3787 |
File Traits
- dll
- Installer Manifest
- 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: | 78 |
|---|---|
| Potentially Malicious Blocks: | 42 |
| Whitelisted Blocks: | 36 |
| Unknown Blocks: | 0 |
Visual Map
? - 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.- Zegost.AE
- Zegost.CB
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:\net-temp.ini | Generic Write |
| c:\windows\filename.jpg | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\filename.jpg | Generic Write,Read Attributes |
| c:\windows\filename.jpg | Synchronize,Write Attributes |
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 |
|---|---|---|
| HKLM\software\wow6432node\243930894\parameters::servicedll | C:\WINDOWS\FileName.jpg | RegNtPreCreateKey |
| HKLM\software\wow6432node\116109950::imgsvc | Please Input Service Name | 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 |
|---|---|
| Syscall Use |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Anti Debug |
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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:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\e080faf81157b7f867cb56938c5e579c206af9b9_0000065536.,LiQMAxHB
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