NSIS/TrojanDownloader.Chindo.AJ

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the NSIS/TrojanDownloader.Chindo.AJ malware detection means that your PC is in big danger. This malware can correctly be named as ransomware – sort of malware which encrypts your files and asks you to pay for their decryption. Deleteing it requires some unusual steps that must be done as soon as possible.
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NSIS/TrojanDownloader.Chindo.AJ detection is a malware detection you can spectate in your system. It frequently appears after the preliminary procedures on your PC – opening the untrustworthy email, clicking the advertisement in the Web or setting up the program from untrustworthy resources. From the second it shows up, you have a short time to act before it begins its destructive action. And be sure – it is much better not to wait for these destructive effects.

What is NSIS/TrojanDownloader.Chindo.AJ virus?

NSIS/TrojanDownloader.Chindo.AJ is ransomware-type malware. It looks for the documents on your disk, ciphers it, and then asks you to pay the ransom for getting the decryption key. Besides making your documents inaccessible, this virus also does a lot of harm to your system. It modifies the networking settings in order to prevent you from checking out the removal guides or downloading the anti-malware program. Sometimes, NSIS/TrojanDownloader.Chindo.AJ can additionally block the launching of anti-malware programs.

NSIS/TrojanDownloader.Chindo.AJ Summary

In total, NSIS/TrojanDownloader.Chindo.AJ malware activities in the infected system are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Behavioural detection: Executable code extraction – unpacking;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Dynamic (imported) function loading detected;
  • A named pipe was used for inter-process communication;
  • Starts servers listening on 127.0.0.1:0;
  • Reads data out of its own binary image;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Behavioural detection: Injection (inter-process);
  • Detects VMware through the presence of a registry key;
  • Attempts to modify proxy settings;
  • Harvests cookies for information gathering;
  • Ciphering the documents located on the target’s drives — so the victim cannot check these files;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-malware apps

Ransomware has actually been a nightmare for the last 4 years. It is challenging to realize a more harmful malware for both individuals and organizations. The algorithms used in NSIS/TrojanDownloader.Chindo.AJ (typically, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot more time than our galaxy actually exists, and possibly will exist. But that malware does not do all these terrible things immediately – it may take up to several hours to cipher all of your documents. Therefore, seeing the NSIS/TrojanDownloader.Chindo.AJ detection is a clear signal that you should start the removal procedure.

Where did I get the NSIS/TrojanDownloader.Chindo.AJ?

Routine ways of NSIS/TrojanDownloader.Chindo.AJ spreading are usual for all other ransomware examples. Those are one-day landing websites where victims are offered to download the free software, so-called bait e-mails and hacktools. Bait emails are a relatively new method in malware spreading – you receive the e-mail that imitates some routine notifications about deliveries or bank service conditions shifts. Within the e-mail, there is an infected MS Office file, or a link which opens the exploit landing page.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Avoiding it looks fairly easy, but still requires tons of focus. Malware can hide in various spots, and it is much better to stop it even before it goes into your PC than to depend on an anti-malware program. General cybersecurity awareness is just an important item in the modern-day world, even if your interaction with a PC stays on YouTube videos. That can save you a lot of time and money which you would spend while searching for a fixing guide.

NSIS/TrojanDownloader.Chindo.AJ malware technical details

File Info:

name: 1ABA2AD50929453E3CB0.mlw
path: /opt/CAPEv2/storage/binaries/c24b6875d3f86987f67bb01268cb906dde974337004f16711d2ba3d5e35b1c4d
crc32: B386177D
md5: 1aba2ad50929453e3cb0796f3a23b6dc
sha1: 038a2c6a6cc7d61b7f068de0a5c85808ed7e4e6a
sha256: c24b6875d3f86987f67bb01268cb906dde974337004f16711d2ba3d5e35b1c4d
sha512: 7eeb35f07622ca6978672f45c60ce0783f4f3f9cfb77ffce6c2197f1e73af9d0adbcd11857057895696b9c2256be53cd44bef96339fe4bfdc37aa3c3bc622d70
ssdeep: 6144:IzjwjnbLReRkEkh161Apydbv2TGb7Ibnspv:IfwNeRkZabuTu+nO
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1A514F1016BE8807AF6B18EB529B59657897FFC210C30E63F6B91AD9E7835944CD38343
sha3_384: b3e8f58be0fa5b6d88d73687fb66680571eddd21acfb4cc2cf264eb52e930bc49def851bb9e2a1a0a3375ef710a1bb60
ep_bytes: 81ecd4020000535556576a2033ed5e89
timestamp: 2012-02-24 19:19:49

Version Info:

0: [No Data]

NSIS/TrojanDownloader.Chindo.AJ also known as:

BkavW32.AIDetect.malware1
LionicTrojan.NSIS.Generic.mAzo
MicroWorld-eScanAdware.PUTF
FireEyeGeneric.mg.1aba2ad50929453e
ALYacAdware.PUTF
CylanceUnsafe
SangforPUP.Win32.Agent.gen
K7AntiVirusTrojan-Downloader ( 004dfe011 )
K7GWTrojan-Downloader ( 004dfe011 )
Cybereasonmalicious.509294
SymantecML.Attribute.HighConfidence
ESET-NOD32NSIS/TrojanDownloader.Chindo.AJ
TrendMicro-HouseCallTROJ_GEN.R002C0PH821
Paloaltogeneric.ml
CynetMalicious (score: 100)
Kasperskynot-a-virus:HEUR:Downloader.Win32.Agent.gen
BitDefenderAdware.PUTF
AvastWin32:Malware-gen
TencentNsis.Trojan-downloader.Chindo.Eaxu
Ad-AwareAdware.PUTF
ComodoMalware@#gtii3dntqh41
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_GEN.R002C0PH821
McAfee-GW-EditionBehavesLike.Win32.Dropper.cc
EmsisoftAdware.PUTF (B)
IkarusTrojan-Downloader.Win32.Adload
GDataAdware.PUTF
JiangminTrojan.Agent.rmk
MAXmalware (ai score=69)
ArcabitAdware.PUTF
MicrosoftRansom:Win32/StopCrypt!ml
AhnLab-V3PUP/Win32.BundleInstaller.C2414934
McAfeeRDN/Generic Downloader.x
VBA32Downloader.Agent
APEXMalicious
RisingAdware.Downloader!1.A52A (CLASSIC)
YandexTrojan.DL.Chindo!bWZISczHAHg
SentinelOneStatic AI – Malicious PE
AVGWin32:Malware-gen
CrowdStrikewin/malicious_confidence_80% (D)

How to remove NSIS/TrojanDownloader.Chindo.AJ?

NSIS/TrojanDownloader.Chindo.AJ malware is extremely hard to erase manually. It places its files in several places throughout the disk, and can recover itself from one of the parts. In addition, a lot of modifications in the windows registry, networking configurations and Group Policies are fairly hard to find and return to the initial. It is better to utilize a specific program – exactly, an anti-malware app. GridinSoft Anti-Malware will definitely fit the best for malware removal purposes.

Why GridinSoft Anti-Malware? It is really lightweight and has its detection databases updated practically every hour. Furthermore, it does not have such problems and weakness as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware suitable for getting rid of malware of any kind.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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