What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32/Injector.AAJO malware detection usually means that your PC is in big danger. This malware can correctly be named as ransomware – type of malware which encrypts your files and asks you to pay for their decryption. Deleteing it requires some specific steps that must be taken as soon as possible.
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Win32/Injector.AAJO detection is a virus detection you can spectate in your computer. It generally appears after the provoking activities on your PC – opening the dubious e-mail messages, clicking the banner in the Internet or mounting the program from untrustworthy resources. From the second it shows up, you have a short time to act until it starts its harmful activity. And be sure – it is far better not to wait for these destructive actions.

What is Win32/Injector.AAJO virus?

Win32/Injector.AAJO is ransomware-type malware. It searches for the files on your disk drives, encrypts it, and then asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this malware additionally does a ton of harm to your system. It modifies the networking settings in order to stop you from checking out the removal guidelines or downloading the anti-malware program. In rare cases, Win32/Injector.AAJO can also stop the setup of anti-malware programs.

Win32/Injector.AAJO Summary

Summarizingly, Win32/Injector.AAJO malware actions in the infected system are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution;
  • Creates RWX memory;
  • Possible date expiration check, exits too soon after checking local time;
  • Dynamic (imported) function loading detected;
  • Performs HTTP requests potentially not found in PCAP.;
  • HTTPS urls from behavior.;
  • Network anomalies occured during the analysis.;
  • CAPE extracted potentially suspicious content;
  • The binary contains an unknown PE section name indicative of packing;
  • Authenticode signature is invalid;
  • A ping command was executed with the -n argument possibly to delay analysis;
  • Uses Windows utilities for basic functionality;
  • Behavioural detection: Injection (Process Hollowing);
  • Executed a process and injected code into it, probably while unpacking;
  • Deletes its original binary from disk;
  • Behavioural detection: Injection (inter-process);
  • Created a process from a suspicious location;
  • Attempts to modify proxy settings;
  • Anomalous binary characteristics;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files located on the victim’s disks — so the victim cannot use these documents;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-virus programs

Ransomware has been a horror story for the last 4 years. It is hard to picture a more damaging malware for both individual users and corporations. The algorithms used in Win32/Injector.AAJO (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need a lot more time than our galaxy already 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 Win32/Injector.AAJO detection is a clear signal that you need to begin the removal procedure.

Where did I get the Win32/Injector.AAJO?

Usual methods of Win32/Injector.AAJO injection are common for all other ransomware variants. Those are one-day landing sites where users are offered to download the free software, so-called bait emails and hacktools. Bait emails are a pretty new tactic in malware distribution – you get the email that imitates some routine notifications about shipments or bank service conditions updates. Inside of the email, there is an infected MS Office file, or a link which opens the exploit landing site.

Malicious email spam

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

Preventing it looks fairly uncomplicated, but still needs a lot of awareness. Malware can hide in various places, and it is better to stop it even before it gets into your system than to trust in an anti-malware program. Essential cybersecurity knowledge is just an essential item in the modern world, even if your relationship with a PC stays on YouTube videos. That may keep you a lot of time and money which you would certainly spend while trying to find a fixing guide.

Win32/Injector.AAJO malware technical details

File Info:

name: C9C38886A7500025D766.mlw
path: /opt/CAPEv2/storage/binaries/ca707182394427894bf4bfe7d9b103e1dc27bcfa8341f8cf349ce4c8d6583895
crc32: C4FCB26F
md5: c9c38886a7500025d76611892512955e
sha1: 970564ee90a932ec6f8a8aedb736b055a7765f21
sha256: ca707182394427894bf4bfe7d9b103e1dc27bcfa8341f8cf349ce4c8d6583895
sha512: e80eeec893ddcba247ebc6aabd55693ae1fa864b77f79ac87e8191b0f496d951f03d09f20873536da886eeb31e8ddfcd4f3f1123cdaaeae6dfa6c980021358f9
ssdeep: 384:LfUgDQK0O0BqWKbxRkYsCVS9cg1TVcdAxPTCJnasK97Sh6iHr3C:LUq0BqFRDaTVcwTZb2h6iL
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T151232A313FF67D99EC9CA1722D90C76C81615D2F2A0D308755AABBA99533EB23700F16
sha3_384: a799087a330c1151342f5af4f2491397f253d31c02b7d572c10ff0240750fd840f64d3badc79bfd5618c64f4a9c0fad2
ep_bytes: 5589e583ec08c7042402000000ff1514
timestamp: 2012-12-16 08:55:10

Version Info:

Translation: 0x041c 0x04e4

Win32/Injector.AAJO also known as:

Elasticmalicious (high confidence)
CynetMalicious (score: 100)
VIPREVirTool.Win32.CeeInject.gen.hlc (v)
CrowdStrikewin/malicious_confidence_100% (W)
K7GWTrojan ( 0040f03f1 )
K7AntiVirusTrojan ( 0040f03f1 )
ESET-NOD32a variant of Win32/Injector.AAJO
AvastWin32:Crypt-OPN [Trj]
EmsisoftGen:Variant.Symmi.8002 (B)
SophosMal/Generic-R + Troj/Ransom-LN
SentinelOneStatic AI – Malicious PE
MAXmalware (ai score=100)
RisingTrojan.Mingc!1.660C (CLOUD)
AVGWin32:Crypt-OPN [Trj]

How to remove Win32/Injector.AAJO?

Win32/Injector.AAJO malware is very difficult to remove manually. It stores its files in a variety of places throughout the disk, and can recover itself from one of the parts. Furthermore, a lot of alterations in the registry, networking setups and Group Policies are quite hard to identify and revert to the original. It is far better to make use of a special app – exactly, an anti-malware app. GridinSoft Anti-Malware will definitely fit the best for malware removal goals.

Why GridinSoft Anti-Malware? It is really lightweight and has its databases updated nearly every hour. Moreover, it does not have such problems and vulnerabilities as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware ideal for removing malware of any form.

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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