Be vigilant! Zhejiang police announced a number of typical cybercrime cases.
On the morning of August 24th, the Public Security Department of Zhejiang Province held a press conference on the summer crackdown and rectification action of public security organs in the province and the special action of "Net 2023", which reported the overall work of cracking down on vicious crimes, cyber crimes and new crimes, and announced five typical cases.
First, solve the case of using ChatGPT to steal cash from enterprise accounts.
In April 2023, the network police branch of Hangzhou Public Security Bureau conducted an online inspection and found that there were anomalies in the payment accounts of some enterprises, and it was suspected that the payment keys were illegally obtained. After the investigation, through a lot of data analysis and tracing work, the suspect Xie Mou in Thailand was locked and captured.
After investigation, the criminal suspect Xie was good at network technology. After illegally obtaining the payment key of the enterprise to which the relevant server belongs by using system loopholes, he used ChatGPT to write the withdrawal program for batch stealing, carried out the criminal activities of batch stealing the funds in the enterprise account, and realized the money laundering through virtual currency, which brought huge economic losses to the relevant enterprises.
Two, detect the use of Trojan horse program to control the theft of corporate funds.
In April, 2023, Netan Brigade of Public Security Bureau of Pingyang County, Wenzhou received an alarm from the financial personnel of a company within its jurisdiction, claiming that its computer was illegally controlled by others, and the suspect used its WeChat to instruct the cashier to transfer money, resulting in an economic loss of 2.982 million yuan.
Wenzhou public security organs quickly set up a task force to carry out investigation and attack, and finally locked in overseas fraud gangs and domestic hackers through a large number of electronic data inspection, analysis and tracing.
Since April, the task force has organized network-closing operations in Zhejiang, Guangxi, Henan, Jiangxi and other places, destroying a hacker studio headed by Liao and a money laundering gang headed by Ge, arresting 30 suspects involved in the case, returning 1.18 million yuan in compensation, 23 early warning risk enterprises and 13 on-site visits. All 30 suspects involved have been taken criminal measures.
Third, detect the case of hacking short video App by using video replacement technology.
In August 2022, the Netan Brigade of Luqiao Branch of Taizhou Public Security Bureau found in its work that some people used the black App to publish a large number of other people’s works on the short video platform to obtain abnormal traffic, attract powder and raise numbers, and earn high returns by earning traffic, promotion fees and live broadcast.
Taizhou Netan immediately set up a task force to carry out investigations. After investigation, it is found that video handling Apps such as "Luban No.7" and "Tianwen-1" are popular. This kind of software is applied together with the short video app of the cottage version, bypassing the official platform audit, replacing, handling and publishing other people’s original videos, so as to obtain abnormal traffic.
In September 2022 and March 2023, the task force went to various parts of the province and Jiangsu, Shanghai, Heilongjiang, Shandong, Gansu, Liaoning, Hubei, Guangxi and other places to carry out centralized network collection operations, successfully smashing two criminal gangs led by Yan Moumou and Zhou Moumou who provided intrusion and illegal control of computer information system programs and tools, arresting 12 suspects, freezing more than 15 million yuan of funds involved and shutting down the websites involved.
Four, detect the "cyber violence" extortion case
In April this year, a company in Binjiang, Hangzhou, had a dispute with others because of business cooperation, and then a large-scale self-media account in the name of "Anti-fraud Alliance with Goods" appeared on the Internet, publishing fictitious and exaggerated negative posts against the company. After that, the user of the self-media account maliciously extorted 38,000 yuan from the company on the grounds of deleting negative posts, and still did not delete negative posts after the company transferred money, and maliciously extorted 330,000 yuan again.
Hangzhou Binjiang Netan immediately set up a task force to conduct investigations. Through comprehensive analysis and judgment, the actual operator of WeChat official account "Anti-fraud Alliance with Goods" was locked and successfully captured. On July 12, Hangzhou Binjiang Netan criminally detained Yang for the crime of extortion.
5. Investigate the case of "Network Water Army" that used cloud control software to provide false "comment and praise" services.
In March of this year, Ningbo Yinzhou Netan found in its work that some people illegally used cloud control software to make profits from false "comment and praise" services on platforms such as live broadcast rooms and short videos. In mid-April, Yinzhou Netan carried out centralized network collection, arrested 9 suspects including Xu and Xie, and seized 7 computers, more than 11,000 mobile phones and more than 20 bank cards at the scene, involving more than 10 million yuan.
After investigation, the criminal suspect Xu and others bought a large number of network equipment such as mobile phones and switches and cloud control software from a network company to build a cloud control computer room, and used the cloud control software to control the mobile phones in the computer room to provide virtual "comment and praise" services for live broadcast rooms, short videos and other platforms.
It is understood that since the Zhejiang public security organs deployed the summer public security crackdown and rectification campaign at the end of June this year, the police situation of criminal security in Zhejiang Province has decreased by 12.5% year-on-year, the number of cases has decreased by 1.89%, and the number of road traffic deaths has increased by 1.3% year-on-year. At the same time, the meeting reported the results of the "Net 2023" special action. Since the beginning of this year, Zhejiang public security organs have arrested more than 24,000 suspects of various cyber crimes and transferred them.
(Headquarters reporter Yu Chen Sun Jinman)