TrojanDownloader:Win32/Small!F
Andrew Campbell What is TrojanDownloader:Win32/Small!F infection?
In this short article you will certainly find concerning the meaning of TrojanDownloader:Win32/Small!F as well as its adverse impact on your computer system. Such ransomware are a form of malware that is clarified by online frauds to require paying the ransom by a target.
Most of the instances, TrojanDownloader:Win32/Small!F ransomware will advise its sufferers to initiate funds transfer for the purpose of neutralizing the amendments that the Trojan infection has actually introduced to the sufferer’s tool.
TrojanDownloader:Win32/Small!F Summary
These adjustments can be as complies with:
- Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
- Attempts to connect to a dead IP:Port (1 unique times);
- Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
- Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.
Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.
- Performs some HTTP requests;
- Unconventionial language used in binary resources: Chinese (Simplified);
- The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
- Deletes its original binary from disk;
- Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
- Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
- Creates a copy of itself;
- Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
- Ciphering the papers found on the victim’s hard disk drive — so the sufferer can no longer utilize the data;
- Preventing normal accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
| xh98123.xyz | BehavesLike.Win32.VirRansom.hc |
TrojanDownloader:Win32/Small!F
The most typical channels whereby TrojanDownloader:Win32/Small!F Ransomware Trojans are infused are:
- By means of phishing e-mails;
- As an effect of customer ending up on a resource that hosts a destructive software application;
As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the target’s computer or avoid the tool from working in an appropriate way – while likewise positioning a ransom money note that discusses the requirement for the victims to impact the settlement for the purpose of decrypting the records or bring back the data system back to the preliminary condition. In a lot of instances, the ransom note will come up when the customer reboots the PC after the system has currently been harmed.
TrojanDownloader:Win32/Small!F distribution channels.
In different edges of the globe, TrojanDownloader:Win32/Small!F grows by jumps as well as bounds. Nonetheless, the ransom notes as well as methods of extorting the ransom money amount may differ relying on certain local (local) settings. The ransom notes and also tricks of extorting the ransom money amount may vary depending on specific regional (regional) setups.
For example:
Faulty signals about unlicensed software.
In particular locations, the Trojans frequently wrongfully report having actually found some unlicensed applications enabled on the sufferer’s device. The alert after that demands the individual to pay the ransom money.
Faulty statements regarding illegal web content.
In countries where software application piracy is less popular, this method is not as effective for the cyber fraudulences. Additionally, the TrojanDownloader:Win32/Small!F popup alert might falsely assert to be deriving from a police institution as well as will report having located youngster pornography or various other prohibited information on the gadget.
TrojanDownloader:Win32/Small!F popup alert might incorrectly claim to be acquiring from a legislation enforcement organization and also will certainly report having located kid pornography or other prohibited information on the gadget. The alert will in a similar way consist of a need for the user to pay the ransom money.
Technical details
File Info:
crc32: 2D4896CBmd5: 9d75edd2e4b5333766c167fa89ce2da5name: 9D75EDD2E4B5333766C167FA89CE2DA5.mlwsha1: 7ec739a590867406d6983715eb5be9377bd4b74esha256: 3d87ac0ba627cc9a6a6abad08100cedd57e79edc1424d7868b021ef012c5bb0asha512: 70bf42cfbd76d8124a9a1bf1c279ba0b150ea48602523c0c03160b914777a035254493f311e2b929f9091781421c1afd06e5f1b0e7ebb619f6ce1a6b3a9e13bbssdeep: 12288:KHNRi1bRG6zj/AGZSdwtJGSwsNb6b3zB6eKo7Mm423NN/ut9:KHNRi1bnAGdvbTuPo9LUNN/c9type: PE32 executable (GUI) Intel 80386, for MS WindowsVersion Info:
0: [No Data]
TrojanDownloader:Win32/Small!F also known as:
| GridinSoft | Trojan.Ransom.Gen |
| Bkav | W32.AIDetect.malware1 |
| K7AntiVirus | Trojan ( 00405dcf1 ) |
| Elastic | malicious (high confidence) |
| Cynet | Malicious (score: 100) |
| Cylance | Unsafe |
| Sangfor | Trojan.Win32.Save.a |
| Alibaba | Trojan:Win32/EncPk.2de2e4b2 |
| K7GW | Trojan ( 00405dcf1 ) |
| Cybereason | malicious.590867 |
| Cyren | W32/RLPacked.B.gen!Eldorado |
| Symantec | ML.Attribute.HighConfidence |
| ESET-NOD32 | a variant of Win32/Packed.FlyStudio.AA potentially unwanted |
| APEX | Malicious |
| Avast | Win32:Evo-gen [Susp] |
| Kaspersky | VHO:Trojan-Dropper.Win32.Dapato.gen |
| Sophos | ML/PE-A + Mal/EncPk-EY |
| BitDefenderTheta | Gen:NN.ZexaF.34738.Fi0aaK5Scwhb |
| TrendMicro | TROJ_GEN.R005C0DF821 |
| McAfee-GW-Edition | BehavesLike.Win32.VirRansom.hc |
| FireEye | Generic.mg.9d75edd2e4b53337 |
| SentinelOne | Static AI – Malicious PE |
| Avira | HEUR/AGEN.1135143 |
| eGambit | Unsafe.AI_Score_100% |
| Microsoft | TrojanDownloader:Win32/Small.gen!F |
| Gridinsoft | Malware.Win32.Gen.bot!se16488 |
| GData | Win32.Application.PUPStudio.A |
| Acronis | suspicious |
| McAfee | Artemis!9D75EDD2E4B5 |
| VBA32 | BScope.Trojan.Tonmye |
| Malwarebytes | Malware.AI.3715089396 |
| TrendMicro-HouseCall | TROJ_GEN.R005C0DF821 |
| Rising | Malware.Heuristic!ET#98% (RDMK:cmRtazqMqOXtyOguEuM2rKiInz7X) |
| Yandex | Packed/RLPack |
| MaxSecure | Dropper.Dinwod.frindll |
| Fortinet | W32/CoinMiner.BELF!tr |
| AVG | Win32:Evo-gen [Susp] |
How to remove TrojanDownloader:Win32/Small!F virus?
There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.
Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
Download GridinSoft Anti-MalwareRun the setup file.
When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your system for TrojanDownloader:Win32/Small!F files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.
Click on “Clean Now”.
When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
Are Your Protected?
GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:
Full version of GridinSoft Anti-Malware
If the guide doesn’t help you to remove TrojanDownloader:Win32/Small!F you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
